P. Weihing, M. Cormier, T. Lutz and E. Krämer: "The near-wake development of a wind turbine operating in stalled conditions -- Part 1: Assessment of numerical models", Wind Energ. Sci., 9, 933–962, 2024.
doi: 10.5194/wes-9-933-2024
M. Schollenberger, B. Kirsch, T. Lutz, E. Krämer and J. Friedrichs: "Aerodynamic interactions between distributed propellers and the wing of an electric commuter aircraft at cruise conditions", CEAS Aeronautical Journal 15, 255–267, 2024.
doi: 10.1007/s13272-023-00706-6
C. Yan, S. Xu, Z. Sun, T. Lutz, D. Guo and G. Yang: "A framework of data assimilation for wind flow fields by physics-informed neural networks", Applied Energy, Volume 371, 2024.
doi: 10.1016/j.apenergy.2024.123719
T. Weislein, F. Seel, T. Lutz and E. Krämer : "Numerical investigation of the vortical structures in the near wake of a model wind turbine", Journal of Physics: Conference Series, Volume 2767, 2024.
doi: 10.1088/1742-6596/2767/2/022008
A. Waldmann, J. Müller, A. Goerttler, T. Lutz : "Shock Control Bumps for Buffet Onset Delay on Sections of a Wing with Hybrid Laminar Flow Control", New Results in Numerical and Experimental Fluid Mechanics XIV. Cham: Springer Nature Switzerland , 2024.
doi: 10.1007/978-3-031-40482-5_65
J. Müller, A. Waldmann, A. Goerttler, S.C. Künnecke, T. Lutz : "Increased Efficiency of Shock Control Bumps for Buffet Onset Delay Due to Variable Camber", New Results in Numerical and Experimental Fluid Mechanics XIV. Cham: Springer Nature Switzerland , 2024.
doi: 10.1007/978-3-031-40482-5_64
F. Seel, T. Lutz and E. Krämer: "Numerical study of the unsteady blade root aerodynamics of a 2 MW wind turbine equipped with vortex generators", Wind Energ. Sci., 8, 1369–1385, 2023.
doi: 10.5194/wes-8-1369-2023
J. Gutknecht, M. Becker, C. Muscari, T. Lutz and J.-W. van Wingerden: "Scaling DMD modes for modeling Dynamic Induction Control wakes in various wind speeds", IEEE Conference on Control Technology and Applications 2023.
link: conference proceedings
H. Heramarwan, N. Müller, R. Hann and T. Lutz: "UAM Icing: Ice Accretion Experiments and CFD Icing Simulations on Rotors for eVTOL Unmanned Aircraft", Conference: International Conference on Icing of Aircraft, Engines, and Structures, 2023.
doi: 10.4271/2023-01-1391
M. Firnhaber Beckers, M. Schollenberger, T. Lutz, D. Bongen, R. Radespiel, J. L. Florenciano and D. E. Funes-Sebastian: "Numerical Investigation of High-Lift Propeller Positions for a Distributed Propulsion System", Journal of Aircraft, 2023.
doi: 10.2514/1.C037248
M. Firnhaber Beckers, M. Kern, M. Schollenberger and T. Lutz: "CFD-based Studies of Propeller Sizing and Operation Settings for High-Lift Applications of Distributed Propulsion", AIAA Aviation 2023 Forum, 2023.
doi: 10.2514/6.2023-3396
C. Breitenstein, J. Müller, M. Hillebrand, M. Woidt, M. Haupt and R. Radespiel: "Fluid-Structure Coupled Analysis of Maneuver Load Alleviation on a Large Transport Aircraft", AIAA Aviation 2023 Forum, 2023.
doi: 10.2514/6.2023-3953
M. Hillebrand, J. Müller and T. Lutz: "Active Gust Alleviation on a High Aspect Ratio Wing Based on High Fidelity CFD Simulations", AIAA Aviation 2023 Forum, 2023.
doi: 10.2514/6.2023-4347
J. Kleinert, M. Ehrle, A. Waldmann and T. Lutz: "Wake tail plane interactions for a tandem wing configuration in high-speed stall conditions", CEAS Aeronautical Journal, 2023.
doi: 10.1007/s13272-023-00670-1
S. Haubold, F. Seel, T. Lutz, A. Beck and E. Krämer: "Study on the Capabilities of a TNO-Based Trailing Edge Noise Prediction Tool Applied to Boundary Layer Suction on a NACA 64-418 Airfoil", 10th International Conference on Wind Turbine Noise, Dublin, 2023.
F. Seel, L. Blazejewski, T. Lutz and E. Krämer: "Numerical Study on the Reduction of Blunt Trailing Edge Noise by the Use of Vortex Generators", 10th International Conference on Wind Turbine Noise, Dublin, 2023.
J. Kleinert, J. Stober and T. Lutz: "Numerical Simulation of Wake Interactions on a Tandem Wing Configuration in High-Speed Stall Conditions", CEAS Aeronautical Journal, 2023.
doi: 10.1007/s13272-022-00634-x
L. Klug, J. Ullah and T. Lutz: "Gust alleviation by spanwise load control applied on a forward and backward swept wing", CEAS Aeronaut , 2023.
doi: s13272-023-00645-2
A. Waldmann, M. Ehrle, J. Kleinert, D. Yorita and T. Lutz: "Mach and Reynolds number effects on transonic buffet on the XRF-1 transport aircraft wing at flight Reynolds number", Exp Fluids 64, 102, 2023.
doi: 10.1007/s00348-023-03642-7
F. Wenz, O. Maas, M. Arnold, T. Lutz and E. Krämer: "Assessment of low-frequency aeroacoustic emissions of a wind turbine under rapidly changing wind conditions based on an aero-servo-elastic CFD simulation", Wind Energy, 2023.
doi: 10.1002/we.2826
M. Hillebrand, J. Müller, J. Ullah and T. Lutz: "Investigation of a Realistic Flap Modeling Using a Combination of Chimera Method and Grid Deformation on a Wing Fuselage Configuration", Proceedings in Applied Mathematics and Mechanics (PAMM), 2023.
doi: 10.1002/pamm.202200101
J. Ullah, T. Lutz, L. Klug, R. Radespiel, J. Wild and R. Heinrich: "Approach for Aerodynamic Gust Load Alleviation by Means of Spanwise-Segmented Flaps", Journal of Aircraft , 2023.
doi: 10.2514/1.C037086
A. Bianchini, G. Bangga, I. Baring-Gould, A. Croce, J.I. Cruz, R. Damiani, G. Erfort, C. Simao Ferreira, D. Infield, C.N. Nayeri and G. Pechlivanoglou : "Current status and grand challenges for small wind turbine technology", Wind Energy Sci., 7(5), 2003-2037, 2022.
doi: 10.5194/wes-7-2003-2022
G. Bangga, S. Parkinson and T. Lutz: "Utilizing high fidelity data into engineering model calculations for accurate wind turbine performance and load assessments under design load cases", IET Renewable Power Generation , 2022.
doi: https://doi.org/10.1049/rpg2.12649
T. Lutz, J. Kleinert, A. Waldmann, L. Koop, D. Yorita, G. Dietz and M. Schulz: "Research Initiative for Numerical and Experimental Studies on High-Speed Stall of Civil Aircraft", Journal of Aircraft , 2022.
doi: 10.2514/1.C036829
M. Ehrle, T. Lutz and E. Krämer: "Flow separation and wake of a transport aircraft configuration at beginning stall", Proc. EUCASS-3AF Conference Lille , 2022.
doi: 10.13009/EUCASS2022-6085
M. Ehrle, J. Romblad, A. Waldmann, P. Weihing, T. Lutz and E. Krämer: "Experimental and Numerical Investigation of Stall on the NACA 64 (3)–418 Airfoil", AIAA Journal, 1-15 , 2022.
doi: 10.2514/1.J061922
J. Müller, M. Hillebrand, M. Ehrle, M. Schollenberger, T. Lutz and E. Krämer: "Studies on the Applicability of a Simplified Gust Simulation Approach in the CFD Code TAU", High Performance Computing in Science and Engineering '20. Springer , 2022.
doi: 10.1007/978-3-030-80602-6_26
C. Zumegen, P. Strathoff, M. Schollenberger, T. Lutz, E. Krämer, B. Kirsch, J. Fredrichs, M. Schubert, A. Dafnis and K.-U. Schröder: "Aerodynamic and structural analysis of a partial turboelectric commuter aircraft with wingtip propellers at aircraft level", AIAA 2022-3955, AIAA AVIATION 2022 Forum, June 2022.
doi: 10.2514/6.2022-3955
M. Schollenberger, T. Lutz, D. P. Bergmann and A. Strohmayer: "Numerical investigation of the influence of geometric and operational parameters on the aerodynamic interactions of wingtip mounted propellers", AIAA 2022-3300, AIAA AVIATION 2022 Forum, June 2022.
doi: 10.2514/6.2022-3300
D. Bongen, M. Firnhaber Beckers, M. Schollenberger, D. Bergmann, T. Lutz, Alex Gothow, Mahmod Saeed, Julien Weiss, Anreas Bardenhagen and R. Radespiel: "Simulation of a Distributed Propulsion System in a Wind Tunnel", AIAA 2022-3818, AIAA AVIATION 2022 Forum, June 2022.
doi: 10.2514/6.2022-3818
M. Firnhaber Beckers, M. Schollenberger, T. Lutz, D. Bongen, R. Radespiel, J. L. Florenciano and D. E. Funes-Sebastian: "CFD Investigation of High-Lift Propeller Positions for a Distributed Propulsion System", AIAA 2022-3217, AIAA AVIATION 2022 Forum, June 2022.
doi: 10.2514/6.2022-3217
F. Seel, L. Blazejewski, T. Lutz and E. Krämer: "Numerical Assessment of a BAY-Type Model for different Vortex Generator Shapes Applied on a Wind Turbine Airfoil", J. Phys.: Conf. Ser. 2265 032001, 2022.
doi: 10.1088/1742-6596/2265/3/032001
F. Wenz, T. Lutz and E. Krämer: "Impact of turbulent inflow and orography on the low-frequency noise sources of a wind turbine", J. Phys.: Conf. Ser. 2265 032060, 2022.
doi: 10.1088/1742-6596/2265/3/032060
F. Wenz, J. Langner, T. Lutz and E. Krämer: "Impact of the wind field at the complex-terrain site Perdigão on the surface pressure fluctuations of a wind turbine", Wind Energ. Sci., 7, 1321–1340, 2022.
doi: 10.5194/wes-7-1321-2022
P. Letzgus, G. Guma, and T. Lutz: "Computational fluid dynamics studies on wind turbine interactions with the turbulent local flow field influenced by complex topography and thermal stratification", Wind Energ. Sci., 7, 1551–1573, 2022.
doi: 10.5194/wes-7-1551-2022
G. Guma, P. Bucher, P. Letzgus, T. Lutz and R. Wüchner: "High-fidelity aeroelastic analyses of wind turbines in complex terrain: fluid-structure interaction and aerodynamic modeling", Wind Energ. Sci., 7, 1421–1439 , 2022.
doi: 10.5194/wes-7-1421-2022
M. Geibel and G. Bangga: "Data Reduction and Reconstruction of Wind Turbine Wake Employing Data Driven Approaches", Energies, 15(10), p.3773, 2022.
doi: 10.3390/en15103773
G. Bangga, F. Seel, T. Lutz and T. Kühn: "Aerodynamic and Acoustic Simulations of Thick Flatback Airfoils Employing High Order DES Methods", Adv. Theory Simul. 2200129, 2022.
doi: 10.1002/adts.202200129
M. Sayed, P. Bucher, G. Guma, T. Lutz and R. Wüchner: "Aeroelastic Simulations Based on High-Fidelity CFD and CSD Models", In: Stoevesandt B., Schepers G., Fuglsang P., Yuping S. (eds) Handbook of Wind Energy Aerodynamics. Springer, Cham. 2022.
doi: 10.1007/978-3-030-05455-7_22-1
J. Oswald, A.Enache, R. Hann, G. Glabeke and T. Lutz: "UAV Icing:xperimental and Numerical Study of Glaze Ice Performance Penalties on an RG-15 Airfoil", AIAA SciTech Forum, 2022.
doi: 10.2514/6.2022-1976
J. Ullah, S. Kamoun, J. Müller and Thorsten Lutz: "Active Gust Load Alleviation by Means of Steady and Dynamic Trailing and Leading Edge Flap Deflections at Transonic Speeds", AIAA SciTech Forum, 2022.
doi: 10.2514/6.2022-1334
A. Štrbac, D. Greiwe, F. Hoffmann, M. Cormier and Thorsten Lutz: "Piloted Simulation of the Rotorcraft Wind Turbine Wake Interaction during Hover and Transit Flights", Energies , 2022.
doi: 10.3390/en15051790
G. Bangga - Simulate Wind Turbine Blade Aerodynamics Using High-Quality Automated Meshing https://community.cadence.com/cadence_blogs_8/b/cfd/posts/simulate-wind-turbine-blade-aerodynamics-using-high-quality-automated-meshing
J. Müller, M. Hillebrand and T. Lutz: "Assessment of the Disturbance Velocity Approach to Determine the Gust Impact on Airfoils in Transonic Flow", New Results in Numerical and Experimental Fluid Mechanics XIII. Cham: Springer International Publishing , 2021.
doi: 10.1007/978-3-030-79561-0_210.1007/978-3-030-80602-6_26
M. Schollenberger and T. Lutz: "Comparison of Different Methods for the Extraction of Airfoil Characteristics of Propeller Blades as Input for Propeller Models in CFD", New Results in Numerical and Experimental Fluid Mechanics XIII. Cham: Springer International Publishing , 2021.
10.1007/978-3-030-79561-0_3
M. Cormier, P. Letzgus, T. Lutz and E. Krämer: "CFD Study of an Offshore Wind Turbine in Maintenance Conditions", High Performance Computing in Science and Engineering , 2021.
10.1007/978-3-030-80602-6_28
N. Müller, R. Hann and T. Lutz: "UAV Icing: Numerical Simulation of Propeller Ice Accretion", AIAA Aviation 2021 Forum, 2021.
doi: 10.2514/6.2021-2673
F. Seel, T. Lutz and E. Krämer: "Numerical Study of the Impact of Vortex Generators on Trailing Edge Noise", Proceedings of the 9th Wind Turbine Noise Conference, virtual event 2021.
Proceedings WTN2021
J. Müller, M. Ehrle, T. Lutz, and E. Krämer: "Numerical Simulation of the FNG Wing Section in Turbulent Inflow", High Performance Computing in Science and Engineering '19, Springer, 2021.
doi: 10.1007/978-3-030-66792-4_29
J. Ullah, F. Seel and T. Lutz: "Numerical Study of Dynamic 2D Bumps for Active Gust Alleviation", New Results in Numerical and Experimental Fluid Mechanics XIII, Contributions to the 22nd STAB/DGLR Symposium, 2021.
M. Cormier, P. Weihing and T. Lutz: "Evaluation of the Effects of Actuator Line Force Smearing on Wind Turbines Near-Wake Development", Journal of Physics: Conference Series, Volume 1934, 2021.
doi: 10.1088/1742-6596/1934/1/012013
G. Bangga, S. Hutani, H. Heramarwan: "The effects of airfoil thickness on dynamic stall characteristics of high-solidity vertical axis wind turbines", Advanced Theory and Simulations 4(6), 2000204, 2021.
doi: 10.1002/adts.202000204
L. Klug, H. Naik, J. Ullah, T. Lutz, J. Wild, R. Heinrich, and R. Radespiel: "Gust alleviation on a forward swept transport aircraft at transonic speeds", AIAA Scitech 2021 Forum , 19–21 January 2021.
doi: 10.2514/6.2021-1649
J. Ullah, S. Monat, A. Seifert, T. Lutz and E. Krämer: "Active Flow Separation Control on a Generic UHBR Engine High-Lift Configuration by Means of Suction and Oscillatory Blowing", Fundamentals of High Lift for Future Civil Aircraft , January 2021.
doi: 10.1007/978-3-030-52429-6_23
Y. Chakroun and G. Bangga: "Aerodynamic characteristics of airfoil and vertical axis wind turbine employed with Gurney flaps", Sustainability 13(8), 4284 , 2021.
doi: 10.3390/su13084284
K. Rogowski, G. Królak, and G. Bangga: "Numerical Study on the Aerodynamic Characteristics of the NACA 0018 Airfoil at Low Reynolds Number for Darrieus Wind Turbines Using the Transition SST Model", Processes 9(3),477, 2021.
doi: 10.3390/pr9030477
G. Bangga and T. Lutz: "Aerodynamic modeling of wind turbine loads exposed to turbulent inflow and validation with experimental data", Energy 223, 120076, 2021.
doi: 10.1016/j.energy.2021.120076
J. M. Prospathopoulos, V. A. Riziotis, E. Schwarz, T. Barlas, M. Aparicio-Sanchez, G. Papadakis, D. Manolas, G. Pirrung and T. Lutz: "Simulation of oscillating trailing edge flaps on wind turbine blades using ranging fidelity tools", Wind Energy 24:357-378 , 2021.
doi: 10.1002/we.2578
G. Guma, G. Bangga, T. Lutz and E. Krämer: "Aeroelastic analysis of wind turbines under turbulent inflow conditions", Wind Energy Science 6, 93-110, 2021.
doi: 10.5194/wes-6-93-2021
J. Ullah, T. Lutz, L. Klug, R. Radespiel and J. Wild: "Active Gust Load Alleviation by Combined Actuation of Trailing Edge and Leading Edge Flap at Transonic Speeds", AIAA Scitech 2021 Forum, 19–21 January 2021, virtual event.
doi: 10.2514/6.2021-1831
M. Schollenberger, T. Lutz and E. Krämer: "Position dependency between the aerodynamic interactions of wingtip- mounted propellers and the wing-vortex-system", 1 st ed. of the Aerospace Europe Conference AEC2020, Bordeaux , 2020.
M. Cormier and T. Lutz: "Numerical Investigation of the Unsteady Flow Field Past an Offshore Wind Turbine in Maintenance Operations", STAB/DGLR Symposium. Springer, Cham. , 2020.
Link
J. Müller, T. Lutz, and E. Krämer: "Numerical Simulation of the Swept FNG Wing in Atmospheric Turbulence", AIAA Aviation 2020 Forum , June 15-19, 2020, virtual event.
doi: 10.2514/6.2020-2778
M. Arnold, F. Wenz, T. Lutz and A. Altmikus: "Integration of System Level CFD Simulations into the Development Process of Wind Turbine Prototypes", Journal of Physics: Conference Series, Volume: 1618 , 2020.
doi: 10.1088/1742-6596/1618/5/052007
L. Klug, R. Radespiel, J. Ullah, F. Seel, T. Lutz, J. Wild, R. Heinrich, and T. Streit: "Actuator concepts for active gust alleviation on transport aircraft at transonic speeds", AIAA Scitech Forum , 2020.
doi: 10.2514/6.2020-0271
P. Letzgus, A. El Bahlouli, D. Leukauf, M. Hofsäß, T. Lutz and E. Krämer: "Microscale CFD Simulations of a Wind Energy Test Site in the Swabian Alps with Mesoscale Based Inflow Data", Journal of Physics: Conference Series, Volume 1618, 2020.
doi: 10.1088/1742-6596/1618/6/062021
P. Zamre, A. Dessoky, M. von der Grün, T. Lutz, and E. Krämer: "Numerical Study of the Impact of Urban Terrain on the Loads and Performance of a Small Vertical Axis Wind Turbine", Journal of Physics: Conference Series, Volume: 1618, 2020.
doi: 10.1088/1742-6596/1618/4/042005
A. Prachař, J. Ullah, T. Lutz, A. Ayele and S. Segal: "Numerical Study of Active Flow Separation Control for UHBR Engine Integration on Generic Wing in High-Lift Configuration", AerospaceEurope 2020 Conference, 2020.
doi: 10.5281/zenodo.4288432
M. Ehrle, A. Waldmann, T. Lutz and E. Krämer: "Simulation of Transonic Buffet with an Automated Zonal DES Approach", CEAS Aeronautical Journal 11, 1025-1036 , 2020.
doi: 10.1007/s13272-020-00466-7
Z. Wu, G. Bangga, T. Lutz, G. Kampers and M. Hölling: "Insights into airfoil response to sinusoidal gusty inflow by oscillating vanes", Physics of Fluids 32, 125107, 2020.
doi: 10.1063/5.0023297
S. Mancini, K. Boorsma, M. Caboni, M. Cormier, T. Lutz, P. Schito and A. Zasso: "Characterization of the unsteady aerodynamic response of a floating offshore wind turbine to surge motion", Wind Energy Science 5 , 2020.
doi: 10.5194/wes-5-1713-2020
Y. Kim, G. Bangga, and A. Delgado: "Investigations of HAWT airfoil shape characteristics and 3D rotational augmentation sensitivity toward the aerodynamic performance improvement", Sustainability 12(18), 2020.
doi: 10.3390/su12187597
A. Rumpf and G. Bangga: "Investigations of active boundary layer control using DDES", Journal of Physics: Conference Series, Volume 1618, 2020.
doi: 10.1088/1742-6596/1618/5/052074
G. Bangga, G. Kampers, P. Weihing, M. Arnold, T. Kühn, M. Hölling, and T. Lutz: "Modeling the static and dynamic characteristics of a wind turbine airfoil and validation with experimental data", Journal of Physics: Conference Series, Volume 1618, 2020.
doi: 10.1088/1742-6596/1618/5/052020
M. Cormier, M. Bühler, M. Mauz, T. Lutz, J. Bange and E. Krämer: "CFD Prediction of Tip Vortex Aging in the Wake of a Multi-MW Wind Turbine", Journal of Physics: Conference Series, Volume 1618, 2020.
doi: 10.1088/1742-6596/1618/6/062029
K. Boorsma, F. Wenz, K. Lindenburg, M. Aman and M. Kloosterman: "Validation and accommodation of vortex wake codes for wind turbine design load calculations", Wind Energy Science 5, 2020.
doi: 10.5194/wes-5-699-2020
F. Wenz, K. Boorsma, T. Lutz and E. Krämer: "Cross-correlation-based approach to align turbulent inflow between CFD and lower-fidelity-codes in wind turbine simulations", Journal of Physics: Conference Series, Volume 1618, 2020.
doi: 10.1088/1742-6596/1618/6/062005
G. Bangga, T. Lutz and M. Arnold: "An improved second order dynamic stall model for wind turbine airfoils", Wind Energy Science 5, 2020.
doi: 10.5194/wes-5-1037-2020
G. Bangga, A. Dessoky, Z. Wu, K. Rogowski and M.O.L. Hansen: "Accuracy and consistency of CFD and engineering models for simulating vertical axis wind turbine loads.", Energy 206, 2020.
doi: 10.1016/j.energy.2020.118087
J. Ullah, A. Prachař, M. Šmíd, A. Seifert, V. Soudakov, T. Lutz and E. Krämer: "Reynolds number and wind tunnel wall effects on the flow field around a generic UHBR engine high-lift configuration.", CEAS Aeronaut J, 2020.
doi: 10.1007/s13272-020-00463-w
Y. Kim, H.A. Madsen, M. Aparicio-Sanchez, G. Pirrung and T. Lutz: "Assessment of blade element momentum codes under varying turbulence levels by comparing with blade resolved computational fluid dynamics", Renewable Energy (Vol. 160), 2020.
doi: 10.1016/j.renene.2020.06.006
Z. Wu, Q. Wang, G. Bangga and H. Huang: "Responses of vertical axis wind turbines to gusty winds", Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2020.
doi: 10.1177/0957650920910595
Y. Kim, G. Bangga and A. Delgado: "Wind Turbine Airfoil Boundary Layer Optimization Using Genetic Algorithm with 3D Rotational Augmentation", Design Optimization of Wind Energy Conversion Systems with Applications. IntechOpen, 2020.
doi: 10.5772/intechopen.89821
K. Rogowski, M.O.L. Hansen and G. Bangga: "Performance analysis of a H-Darrieus wind turbine for a series of 4-digit NACA airfoils", Energies 13(12), 2020.
doi: 10.3390/en13123196
P. Weihing, J. Letzgus, T. Lutz and E. Krämer : "Development of Alternative Shielding Functions for Detached-Eddy Simulations", Progress in Hybrid RANS-LES Modelling, Papers contributed to the 7th Symposium on Hybrid RANS-LES Methods, 2020.
doi: 10.1007/978-3-030-27607-2_8
J. Letzgus, P. Weihing, M. Kessler and E. Krämer : "Assessment of Delayed Detached-Eddy Simulation of Dynamic Stall on a Rotor", Progress in Hybrid RANS-LES Modelling, Papers contributed to the 7th Symposium on Hybrid RANS-LES Methods, 2020.
doi: 10.1007/978-3-030-27607-2_25
M. Possti, Y. Ariel, J. Ullah and A. Seifert: "Active Control of Wing-Engine-Slat-Cut-Out region Flow Separation", roceedings of the 54th 3AF International Conference on Applied Aerodynamics, 2019.
A. Dessoky, G. Bangga, T. Lutz and E. Krämer: "Computational studies on Darrieus VAWT noise mechanisms employing a high order DDES model", Renewable Energy 143, 2019.
doi: https://doi.org/10.1016/j.renene.2019.04.133
A. Dessoky, G. Bangga, T. Lutz and E. Krämer: "Aerodynamic and aeroacoustic performance assessment of H-rotor darrieus VAWT equipped with wind-lens technology", Energy 175, 2019.
doi: https://doi.org/10.1016/j.energy.2019.03.066
A. Dessoky, G. Bangga, T. Lutz and E. Krämer: "Computational Study Using DDES with Higher Order Scheme Modeling to Predict Darrieus VAWT Noise Mechanisms", Contributions to the 21st STAB/DGLR Symposium, Darmstadt, Germany, 2018.
doi: https://doi.org/10.1007/978-3-030-25253-3_76
M. Ehrle, A. Waldmann, T. Lutz and E. Krämer: "Flow Separation and Wake of the Common Research Model at Low Mach Numbers", in Proceedings of the AVT-307 Research Symposium, Trondheim, 2019.
N.P. Putri, T. Yuwono, J. Rustam, P. Purwanto and G. Bangga.: "Experimental studies on the effect of obstacle upstream of a Savonius wind turbine" SN Applied Sciences, 1(10), p.1216. 2019.
M. Ehrle, A. Waldmann, T. Lutz, E. Krämer: "An Automated Zonal Detached Eddy Simulation Method for Transonic Buffet", Progress in Hybrid RANS-LES Modelling, Papers Contributed to the 7th Symposium on Hybrid RANS-LES Methods , 17–19 September, 2018, Berlin.
doi: https://doi.org/10.1007/978-3-030-27607-2
M. Ehrle, A. Waldmann, T. Lutz and E. Krämer: "Simulation of Transonic Buffet at the Common Research Model with an Automated Zonal Detached Eddy Simulation Approach", in Proceedings of the 54th 3AF International Conference on Applied Aerodynamics , Paris, 2019.
M. Schollenberger, T. Lutz, E. Krämer: "Boundary Condition Based Actuator Line Model to Simulate the Aerodynamic Interactions at Wingtip Mounted Propellers", New Results in Numerical and Experimental Fluid Mechanics XII, Springer Nature Switzerland AG, 2019.
doi: https://doi.org/10.1007/978-3-030-25253-3_58
J. Herrmann, G. Bangga: "Multi-objective optimization of a thick blade root airfoil to improve the energy production of large wind turbines", Journal of Renewable and Sustainable Energy 11, 043304, 2019.
doi: https://doi.org/10.1063/1.5070112
G. Bangga, A. Dessoky, T. Lutz, E. Krämer: "Improved Double-Multiple-Streamtube approach for H-Darrieus vertical axis wind turbine computations", Energy 182, 673-688, 2019.
doi: https://doi.org/10.1016/j.energy.2019.06.083
G. Bangga: "Numerical studies on dynamic stall characteristics of a wind turbine airfoil", Journal of Mechanical Science and Technology 33 (3), 1257-1262, 2019.
doi: https://doi.org/10.1007/s12206-019-0225-1
G. Bangga, F. Novita, H. Lee: "Evolutional computational fluid dynamics analyses of reactive distillation columns for methyl acetate production process", Chemical Engineering and Processing-Process Intensification 135, 42-52, 2019.
doi: https://doi.org/10.1016/j.cep.2018.11.015
A. Waldmann, R. Konrath, T. Lutz and E. Krämer: "Unsteady Wake and Tailplane Loads of the Common Research Model in Low Speed Stall", in New Results in Numerical and Experimental Fluid Mechanics XII, Springer Nature Switzerland AG, 2019.
doi: https://doi.org/10.1007/978-3-030-25253-3_2
F. Wenz, L. Klein, Th. Lutz, P. Rettler: "Analysis of a high-fidelity aero-servo-elastic process chain to assess low-frequency emissions from wind turbines", Proceedings of the 8th International Conference of Wind Turbine Noise, Lisbon 2019.
C. Hornung, Th. Lutz, E. Krämer: "Development of Design Guidelines for Low Noise But High Yield Wind Turbines", Proceedings of the 8th International Conference of Wind Turbine Noise, Lisbon 2019.
C. Hornung, C. Scheit, N. Noffke, A. Altmikus, Th. Lutz, E. Krämer: "Inflow Noise: Prediction and analysis of the relevance for a multi-megawatt turbine", DAGA, Rotterdam 2019.
J. Ullah, N. Shay, M. Possti, A. Seifert, T. Lutz, E. Krämer: "Capability of RANS Simulations to Reproduce Flat Plate Boundary Layer Interaction with Suction and Oscillatory Blowing", Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Volume 142, Springer, Germany, 2019.
doi: https://doi.org/10.1007/978-3-030-25253-3
J. Ullah, A. Prachař, M. Šmid, A. Seifert, V. Soudakov, T. Lutz and E. Krämer: "Reynolds Number and Wind Tunnel Effects on the Flow Field Around a Generic UHBR Engine High-Lift Configuration", In Proceedings of the 54th 3AF International Conference on Applied Aerodynamics, Paris, 2019.
P. Kankatala, G. Bangga: "Active separation control on thick wind turbine airfoils by means of steady and unsteady blowing." Advanced Theory and Simulations, 1900077, 2019 .
doi: https://doi.org/10.1002/adts.201900077
M. Sayed, Th. Lutz, E. Krämer, Sh. Shayegan, R. Wüchner: "Aeroelastic analysis of 10 MW wind turbine using CFD-CSD explicit FSI-coupling approach", J. of Fluid and Structures,Vol. 87, Pages 345-377, 2019. doi: https://doi.org/10.1016/j.jfluidstructs.2019.03.023
Z. Wu: "Rotor power performance and flow physics in lateral sinusoidal gusts", Energy 176, 917-928, 2019.
doi: https://doi.org/10.1016/j.energy.2019.04.067
doi: https://doi.org/10.1016/j.energy.2019.03.066
C. Hornung, T. Lutz, E. Krämer: "A model to include turbulence-turbulence interaction in the prediction of trailing edge far field noise for high angles of attack or slightly separated flow", Journal ofRenewable Energy, 136, 945–954, 2019.
doi: http://doi.org/10.1016/j.renene.2018.12.093
A. Waldmann, T. Lutz, E. Krämer: "Separated Wake Flow and Tail Loads of the Common Research Model in Low Speed Stall Conditions", AIAA Scitech 2019 Forum, AIAA 2019-2315.
doi: https://doi.org/10.2514/6.2019-2315
Z. Wu, G. Bangga, and Y. Cao: "Effects of lateral wind gusts on vertical axis wind turbines", Energy 167, 1212-1223, 2019.
doi: https://doi.org/10.1016/j.energy.2018.11.074
Klein, L., Gude, J., Wenz, F. , Lutz, T. and Krämer, E.: Advanced CFD-MBS coupling to assess low-frequency emissions from wind turbines. Wind Energy Science. 1-30.
doi: 10.5194/wes-2018-51.
Guma, G., Bangga, G., Jost, E., Lutz, T. and Krämer, E.: Consistent 3D CFD and BEM simulations of a research turbine considering rotational augmentation, Journal of Physics: Conference Series, vol. 1037 (2), 2018.
G. Bangga: Comparison of Blade Element Method and CFD Simulations of a 10 MW Wind Turbine, Fluids 3, 73, 2018. doi: https://doi.org/10.3390/fluids3040073
Waldmann, A., Lutz, T., Krämer, E.: Wind Tunnel Support System Influence on NASA Common Research Model at Low-Speed Conditions, Journal of Aircraft, Vol. 55, No. 5, pp. 1762-1772, 2018
doi: https://doi.org/10.2514/1.C034440
Niels N. Sørensen, F.Bertagnolio, E. Jost, T.Lutz: "Aerodynamic effects of compressibility for windturbines at high tip speeds", Journal of Physics: Conf. Series 1037, 2018
doi: https://10.1088/1742-6596/1037/2
P. Weihing, T. Wegmann, T. Lutz, E. Krämer, T. Kühn, A. Altmikus: "Numerical analyses and optimizations on the flow in the nacelle region of a wind turbine", Wind Energy Science, 3(1), 503-531, 2018
Letzgus, P., Lutz, T., Krämer, E.: "Detached Eddy Simulations of the local Atmospheric Flow Field within a Forested Wind Energy Test Site located in Complex Terrain", Journal of Physics: Conference Series, Volume 1037
http://stacks.iop.org/1742-6596/1037/i=7/a=072043
Bühler, M., Weihing, P., Klein, L., Lutz, T., Krämer, E.: "Actuator Line Method Simulations for the Analysis of Wind Turbine Wakes Acting on Helicopters", Journal of Physics: Conference Series, Volume 1037
http://stacks.iop.org/1742-6596/1037/i=6/a=062004
Schulz, C., Letzgus, P., Weihing, P., Lutz, T., Krämer, E.: "Numerical simulation of the impact of atmospheric turbulence on a wind turbine in complex terrain", Journal of Physics: Conference Series, Volume 1037
http://stacks.iop.org/1742-6596/1037/i=7/a=072016
M. Cormier, M. Caboni, T. Lutz, K. Boorsma, E. Krämer: "Numerical analysis of unsteady aerodynamics of floating offshore wind turbines", Journal of Physics: Conference Series, vol. 1037, 2018.
doi: https://doi.org/10.1088/1742-6596/1037/7/072048
G. Bangga: "Three-Dimensional Flow in the Root Region of Wind Turbine Rotors". Kassel university press GmbH, 2018.
doi: https://doi.org/10.19211/KUP9783737605373
G. Bangga, T. Lutz, E. Krämer: "Active separation control on a very thick wind turbine airfoil-A URANS and DDES perspective". Journal of Physics: Conference Series, vol. 1037, no. 2, p. 022025. IOP Publishing, 2018.
doi: https://doi.org/10.1088/1742-6596/1037/2/022025
G. Bangga, T. Lutz, E. Krämer: "Energy assessment of two vertical axis wind turbines in side-by-side arrangement". Journal of Renewable and Sustainable Energy 10 (3), 033303, 2018.
doi: https://doi.org/10.1063/1.5028199
Waldmann, A., Lutz, T., Krämer, E.: "Unsteady Simulation of the Separated Wake of a Transport Aircraft by Detached Eddy Simulation", New Results in Numerical and Experimental Fluid Mechanics XI, pp. 61–71. Springer International Publishing, Cham, 2018.
doi: https://doi.org/10.1007/978-3-319-64519-3_6
D. Marten, S. Bartholomay, G. Pechlivanoglou, C. N. Nayeri, O. C. Paschereit, A. C. Klein and Th. Lutz.
"Numerical and Experimental Investigation of Trailing Edge Flap Performance on a Model Wind Turbine",
2018 Wind Energy Symposium, 2018.
A. C. Klein, S. Bartholomay, D. Marten, Th. Lutz, G. Pechlivanoglou, C. N. Nayeri, O. C. Paschereit and E. Krämer.
"About the suitability of different numerical methods to reproduce model wind turbine measurements in a wind tunnel with a high blockage ratio", Wind Energy Science (Copernicus GmbH), V. 3, 1, p. 439-460, 2018.
doi: https://doi.org/10.5194/wes-3-439-2018
S. Bartholomay, D. Marten, M. Sánchez Matrínez, J. Alber, G. Pechlivanoglou, C. N. Nayeri, C. O. Paschereit, A. C. Klein, Th. Lutz, Thorsten and E. Krämer.
"Cross-talk Compensation for Blade Root Flap- and Edgewise Moments on an Experimental Research Wind Turbine and Comparison to Numerical Results", ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition 2018.
E. Jost, L. Klein, L. Leipprand, T. Lutz, E. Krämer.
"Extracting the angle of attack on rotor blades from CFD simulations",
Wind Energy, (2018).
doi:https://doi.org/10.1002/we.2196
Benjamin Arnold, Christof Rautmann, Thorsten Lutz, and Ewald Kraemer.
"Wind Turbine Trailing-Edge Noise Reduction by Means of Boundary-Layer Suction",
AIAA Journal, (2018), accessed February 15, 2018.
doi: https://doi.org/10.2514/1.J056633
Benjamin Arnold, Thorsten Lutz, and Ewald Kraemer.
"Design of a Boundary-Layer Suction System for Turbulent Trailing-Edge Noise Reduction of Wind Turbines",
Renewable Energy Journal, Volume 123, August 2018, pp. 249-262.
doi: https://doi.org/10.1016/j.renene.2018.02.050
Fischer, A., Flamm, A., Jost, E., Lutz, T., and Krämer, E.
"Numerical Investigation of a Model Wind Turbine"
New Results in Numerical and Experimental Fluid Mechanics XI, pp. 717–727,
https://doi.org/10.1007/978-3-319-64519-3_64, 2018
Klein, A., Zabel, S., Lutz, T., and Krämer, E.
"About the Influence of Wind Tunnel Walls, Tower and Nozzle on the Performance of a Model Wind Turbine"
High Performance Computing in Science and Engineering’17, pp. 339–353, Springer, 2018.
Rouven Mayer, Thorsten Lutz, and Ewald Krämer.
"Numerical Study on the Ability of Shock Control Bumps for Buffet Control",
AIAA Journal, (2018), accessed March 21, 2018.
doi: https://doi.org/10.2514/1.J056737
Katharina Wawrzinek, Thorsten Lutz and Ewald Krämer.
"Numerical Simulations of Artificial Disturbance Influence on a High Lift Airfoil",
High Performance Computing in Science and Engineering '17, Springer
doi: https://doi.org/10.1007/978-3-319-68394-2_19
Galih Bangga, Giorgia Guma, Thorsten Lutz, Ewald Krämer
"Numerical simulations of a large offshore wind turbine exposed to turbulent inflow conditions"
Wind Engineering 42, Issue 2, pp. 88 - 96, 2018
doi: https://doi.org/10.1177/0309524X18756958
Galih Bangga, Go Hutomo, Taurista Syawitri, Tri Kusumadewi, Winda Oktavia, Ahmad Sabila, Herlambang Setiadi, Muhamad Faisal, Yongki Hendranata, Dwi Lastomo, Louis Putra, Stefanus Kristiadi, Ilmi Bumi
"Enhancing BEM simulations of a stalled wind turbine using a 3D correction model"
Journal of Physics: Conference Series 974, 012020, 2018.
Galih Bangga, Tri Kusumadewi, Go Hutomo, Ahmad Sabila, Taurista Syawitri, Herlambang Setiadi, Muhamad Faisal, Raditya Wiranegara, Yongki Hendranata, Dwi Lastomo, Louis Putra, Stefanus Kristiadi
"Improving a two-equation eddy-viscosity turbulence model to predict the aerodynamic performance of thick wind turbine airfoils"
Journal of Physics: Conference Series 974, 012019, 2018
Galih Bangga, Pascal Weihing, Thorsten Lutz, Ewald Krämer
Hybrid RANS/LES simulations of the three-dimensional flow at root region of a 10 MW wind turbine rotor
New Results in Numerical and Experimental Fluid Mechanics XI, 707-716, 2018
doi: https://doi.org/10.1007/978-3-319-64519-3_63
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2017
Thorsten Lutz, Christoph Schulz, Patrick Letzgus and Andreas Rettenmeier.
"Impact of Complex Orography on Wake Development: Simulation Results for the Planned WindForS Test Site",
Journal of Physics, Conference Series, Volume 854, conference 1
http://iopscience.iop.org/article/10.1088/1742-6596/854/1/012029
Pascal Weihing, Christoph Schulz, Thorsten Lutz and Ewald Krämer.
"Comparison of the Actuator Line Model with Fully Resolved Simulations in Complex Environmental Conditions",
Journal of Physics, Conference Series, Volume 854, conference 1
http://iopscience.iop.org/article/10.1088/1742-6596/854/1/012049
Benjamin Arnold, Christof Rautmann, Thorsten Lutz, and Ewald Kraemer.
"Design of a Boundary-Layer Suction System for Trailing-Edge Noise Reduction of an Industrial Wind Turbine",
35th Wind Energy Symposium, AIAA SciTech Forum, (AIAA 2017-1380)
http://dx.doi.org/10.2514/6.2017-1380
Rouven Mayer, Thorsten Lutz, and Ewald Kraemer.
"A Numerical Study on the Ability of Shock Control Bumps for Buffet Alleviation",
55th AIAA Aerospace Sciences Meeting, AIAA SciTech Forum, (AIAA 2017-0711)
http://dx.doi.org/10.2514/6.2017-0711
Jost, E., Fischer, A., Bangga, G., Lutz, T., and Krämer, E.:
An investigation of unsteady 3-D effects on trailing edge flaps,
Wind Energ. Sci., 2, 241-256, doi:10.5194/wes-2-241-2017, 2017.
http://www.wind-energ-sci.net/2/241/2017/
C. Hornung, C. Scheit, C. Napierala, M. Arnold, D. Bekiropoulos, A. Altmikus, T. Lutz:
Predicted and Measured Trailing-Edge Noise Emission for a 2.3 MW Wind Turbine.
7th international Conference on Wind Turbine Noise, Rotterdam, 2017
G. Bangga, T. Lutz, E. Jost, E. Krämer:
CFD studies on rotational augmentation at the inboard sections of a 10 MW wind turbine rotor, Journal of Renewable and Sustainable Energy 9 (2), 023304, 2017. http://dx.doi.org/10.1063/1.4978681
G. Bangga, P. Weihing, T. Lutz and E. Krämer:
Effect of computational grid on accurate prediction of a wind turbine rotor using delayed detached-eddy simulations, Journal of Mechanical Science and Technology 31 (5), 2359–2364, 2017. http://dx.doi.org/10.1007/s12206-017-0432-6
G. Bangga, T. Lutz and E. Krämer:
Root flow characteristics and 3D effects of an isolated wind turbine rotor, Journal of Mechanical Science and Technology 31 (8), 3839–3844, 2017. http://dx.doi.org/10.1007/s12206-017-0728-6
G. Bangga, G. Hutomo, R. Wiranegara, H. Sasongko:
Numerical study on a single bladed vertical axis wind turbine under dynamic stall, Journal of Mechanical Science and Technology 31 (1), 261-267, 2017. http://dx.doi.org/10.1007/s12206-016-1228-9
G. Bangga and H. Sasongko:
Dynamic stall prediction of a pitching airfoil using an adjusted two-equation URANS turbulence model, Journal of Applied Fluid Mechanics 10 (1), 1-10, 2017. https://doi.org/10.18869/acadpub.jafm.73.238.26391
G. Bangga, M. Solichin, A. Daman, D. Sa’adiyah, A. Dessoky and T. Lutz:
Aerodynamic performance of a small vertical axis wind turbine using an overset grid method, AIP Conference Proceedings 1867 (1), 020005, 2017. http://dx.doi.org/10.1063/1.4994408
G. Bangga, A. Ashfahani, E. Sugianto, D. Sa’adiyah, T. Putri, E. Jost, T. Lutz:
Three-dimensional flow in the vicinity of a circular cylinder mounted to a flat plate at high Reynolds number, AIP Conference Proceedings 1788 (1), 030012, 2017. http://aip.scitation.org/doi/abs/10.1063/1.4968265
D. Sa’adiyah, G. Bangga, W. Widodo and N. Ikhwan:
Numerical study of flow, combustion and emissions characteristics in a 625 MWe tangentially fired boiler with composition of coal 70% LRC and 30% MRC, AIP Conference Proceedings 1867 (1), 2017, 020007. http://dx.doi.org/10.1063/1.4994410
A. Ashfahanil, G. Bangga, S. Budiprayitno, A. Yulianto, D. Ratnasari:
Constrained H∞/LTR control design for a mobile inverted pendulum, AIP Conference Proceedings 1788 (1), 030085, 2017. http://aip.scitation.org/doi/abs/10.1063/1.4968338
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2016
Sayed, Th. Lutz, E. Krämer, Sh. Shayegan, A. Ghantasala, R. Wüchner and K.-U. Bletzinger
High fidelity CFD-CSD aeroelastic analysis of slender bladed horizontal-axis wind turbine
J. Phys.: Conf. Ser. 753 042009
http://iopscience.iop.org/article/10.1088/1742-6596/753/4/042009/meta
Sayed, Th. Lutz and E. Krämer
3-D Time-Accurate CFD Simulations of a Multi-Megawatt Slender Bladed HAWT under Yawed Inflow Conditions
J. Phys.: Conf. Ser. 749 012008
http://iopscience.iop.org/article/10.1088/1742-6596/749/1/012008
A. Sayed, T. Lutz, E. Krämer and F. Borisade
Aero-elastic analysis and classical flutter of a multi-megawatt slender bladed horizontal-axis wind turbine
Progress in Renewable Energies Offshore, C. Guedes Soares (Ed.) Taylor and Francis, London, 2016, pages 617-625
P. Colliss, H. Babinsky, K. Nübler, and T. Lutz,
"Vortical Structures on Three-Dimensional Shock Control Bumps",
AIAA Journal, Vol. 54, No. 8 (2016), pp. 2338-2350.
http://dx.doi.org/10.2514/1.J054669
L Klein, B Luhmann, K-N Rösch, T Lutz, P-W Cheng and E Krämer:
CFD simulation of a 2 bladed multi megawatt wind turbine with flexible rotor connection
J. Phys.: Conf. Ser. 753 022010
Link: http://iopscience.iop.org/article/10.1088/1742-6596/753/2/022010
Klein, L., Schulz, C., Lutz, T., & Krämer, E.
Influence of Jet Flow on the Aerodynamics of a Floating Model Wind Turbine. In The 26th International Ocean and Polar Engineering Conference. International Society of Offshore and Polar Engineers. (2016, June)
Link: https://www.onepetro.org/conference-paper/ISOPE-I-16-407
Yusik Kim, Eva Jost, Galih Bangga, Pascal Weihing and Thorsten Lutz,
Effects of ambient turbulence on the near wake of a wind turbine,
Journal of Physics: Conference Series, vol.753, p.032047, 2016.
http://iopscience.iop.org/article/10.1088/1742-6596/753/3/032047
Th. Lutz, P.P. Gansel, A. Waldmann, D.-M. Zimmermann and S. A. Schulte am Hülse:
“Prediction and Measurement of the Common Research Model Wake at Stall Conditions”,
Journal of Aircraft, 2016, Vol. 53, No. 2: 501-514, 10.2514/1.C033351.
Waldmann, P. Gansel, T. Lutz, E. Krämer:
Unsteady Wake of the NASA Common Research Model in Low-Speed Stall
Journal of Aircraft, Vol. 53, No. 4 (2016), pp. 1073-1086
http://arc.aiaa.org/doi/10.2514/1.C033413
Bangga, Y. Kim, T. Lutz, P. Weihing, E. Krämer,
Investigations of the inflow turbulence effect on rotational augmentation by means of CFD, Journal of Physics Conference Series 753(2):022026, 2016. http://iopscience.iop.org/article/10.1088/1742-6596/753/2/022026/meta
Hutomo, G. Bangga, H. Sasongko,
CFD Studies of the Dynamic Stall Characteristics on a Rotating Airfoil, Applied Mechanics and Materials 836:109-114, 2016. http://www.scientific.net/AMM.836.109
Bangga, G. Hutomo, R. Wiranegara, H. Sasongko,
Numerical study on a single bladed vertical axis wind turbine under dynamic stall, Journal of Mechanical Science and Technology 31(1), 2017. (accepted)
Bangga, H. Sasongko,
Dynamic stall prediction of a pitching airfoil using an adjusted two-equation URANS turbulence model, Journal of Applied Fluid Mechanics 10 (1), 2017. (accepted)
Fischer, A., Lutz, T., Kramer, E., Cordes, U., Hufnagel, K., Tropea, C., Kampers, G., Hölling, M., Peinke, J.: Numerical and experimental investigation of an airfoil with load control in the wake of an active grid. In: Journal of Physics: Conference Series, vol. 753, p. 022036. IOP Publishing (2016)
http://iopscience.iop.org/article/10.1088/1742-6596/753/2/022036
Jost, A. Fischer, T. Lutz and E. Krämer:
An investigation of unsteady 3D effects on trailing edge flaps
J. Phys.: Conf. Ser. 753 022009 http://dx.doi.org/10.1088/1742-6596/753/2/022009
T. Barlas, E. Jost, G. Pirrung, T. Tsiantis, V. Riziotis, S.T. Navalkar, T. Lutz and J.W. van Wingerden
Benchmarking aerodynamic prediction of unsteady rotor aerodynamics of active flaps on wind turbine blades using ranging fidelity tools
J. Phys.: Conf. Ser. 753 022027 http://dx.doi.org/10.1088/1742-6596/753/2/022027
C. Ferreira, A. Gonzalez, D. Baldacchino, M. Aparicio, S. Gómez, X. Munduate, N.R. Garcia, J.N. Sørensen, E. Jost, S. Knecht, T. Lutz, P. Chassapogiannis, K. Diakakis, G. Papadakis, S. Voutsinas, J. Prospathopoulos, T. Gillebaart and A. van Zuijlen
Results of the AVATAR project for the validation of 2D aerodynamic models with experimental data of the DU95W180 airfoil with unsteady flap
J. Phys.: Conf. Ser. 753 022006 http://dx.doi.org/10.1088/1742-6596/753/2/022006
N. N. Sørensen, B. Méndez, A. Muñoz, G. Sieros, E. Jost, T. Lutz, G. Papadakis, S. Voutsinas, G.N. Barakos, S. Colonia, D. Baldacchino, C. Baptista and C. Ferreira
CFD code comparison for 2D airfoil flows
J. Phys.: Conf. Ser. 753 082019 http://dx.doi.org/10.1088/1742-6596/753/8/082019
J.G. Schepers, O. Ceyhan, K. Boorsma, A. Gonzalez, X Munduate, O Pires, N.N. Sørensen, C. Ferreira, G Sieros, J. Madsen, S. Voutsinas, T. Lutz, G. Barakos, S. Colonia, H. Heißelmann, F. Meng and A. Croce
Latest results from the EU project AVATAR: Aerodynamic modelling of 10 MW wind turbines
J. Phys.: Conf. Ser. 753 022017 http://dx.doi.org/10.1088/1742-6596/753/2/022017
Christoph Schulz, Martin Hofsäß, Jan Anger, Alexander Rautenberg, Thorsten Lutz, Po Wen Cheng and Jens Bange
Comparison of Different Measurement Techniques and a CFD Simulation in Complex Terrain
2016 J. Phys.: Conf. Ser. 753 082017
C Schulz, L Klein, P Weihing and Th Lutz
Investigations into the Interaction of a Wind Turbine with Atmospheric Turbulence in Complex Terrain
2016 J. Phys.: Conf. Ser. 753 032016
E.Jost, T. Lutz, E. Krämer
"A parametric CFD study of morphing trailing edge flaps on a 10 MW offshore wind turbine",
13th EERA DeepWind conference, Januar 2016, Trondheim, Norwegen
http://dx.doi.org/10.1016/j.egypro.2016.09.192
Schulz, C., Meister, K., Lutz, T., Krämer, E.
Investigations on the wake development of the mexico rotor considering different inflow conditions. In: Contributions to the 19th STAB/DGLR Symposium Munich, Germany 2014,New Results in Numerical and Experimental Fluid Mechanics X
Schulz, C., Fischer, A., Weihing, P., Lutz, T. and Krämer, E., 2016.
Evaluation and control of loads on wind turbines under different operating conditions by means of cfd. In High Performance Computing in Science and Engineering´ 15 (pp. 463-478). Springer International Publishing.
Christoph Schulz, Patrick Letzgus, Thorsten Lutz, Ewald Krämer
CFD study on the impact of yawed inflow on loads, power and near wake of a generic wind turbine, Wind Energy,1099-1824
http://onlinelibrary.wiley.com/doi/10.1002/we.2004/full
Yusik Kim, Pascal Weihing, Christoph Schulz, Thorsten Lutz
Do turbulence models deteriorate solutions using a non-oscillatory scheme?, Journal of Wind Engineering and Industrial Aerodynamics, Volume 156, September 2016, Pages 41-49, ISSN 0167-6105
http://www.sciencedirect.com/science/article/pii/S0167610516300666
Waldmann, A., Lutz, T., and Krämer, E.
"Wind Tunnel Support System Influence on NASA Common Research Model at Low Speed Conditions", 32nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, AIAA Aviation 2016, Washington, D.C., 13-17 June 2016, AIAA 2016-3655
DOI: 10.2514/6.2016-3655
URL: http://arc.aiaa.org/doi/abs/10.2514/6.2016-3655
Cordula Hornung, Thorsten Lutz, Ewald Krämer:
Convection Velocities for trailing edge noise prediction
Conference Paper, EWEA Phd Seminar 2016
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2015
Sayed, Th. Lutz and E. Krämer
Aerodynamic investigation of flow over a multi-megawatt slender bladed horizontal-axis wind turbine
Renewable Energies Offshore, C. Guedes Soares (Ed.) CRC Press 2015, pages 773-780
http://www.crcnetbase.com/doi/10.1201/b18973-109
Ch. Schulz, M.Hofsäß, B.Peters, Th.Lutz, E. Krämer
A Southern German joint research project towards a better understanding of complex terrain sites
11th EAWE PhD Seminar on Wind Energy in Europe, 23.-25. September 2015, Stuttgart, Germany.
Thorsten Lutz, Benjamin Arnold, Dimitrios Bekiropoulos, Jonas Illg, Ewald Krämer, Alexander Wolf, Richard Hann and M. Kamruzzaman,
„Prediction of Flow-Induced Noise Sources of Wind Turbines,“
accepted for publication in: Special Issue of the International Journal of Aeroacoustics, 2015.
Fischer, T. Lutz, E. Krämer, U. Cordes, K. Hufnagel and C. Tropea,
"Experimental and Numerical Generation of Turbulent Inflow Conditions for Wind Turbine Airfoils",
12th German Wind Energy Conference DEWEK, 19./20. May 2015, Bremen, Germany, conference proceedings, 2015.
Mayer, D. Zimmermann, K. Wawrzinek, T. Lutz, E. Krämer:
Numerical Study of Three-Dimensional Shock Control Bump Flank Effects on Buffet Behavior
High Performance Computing in Science and Engineering '15
N. Nayeri, et. al,
"Collaborative Research on Wind Turbine Load Control under Realistic Turbulent Inflow Conditions",
12th German Wind Energy Conference DEWEK, 19./20. May 2015, Bremen, Germany
Mayer, T. Lutz, E. Krämer:
Toward Numerical Optimization of Buffet Alleviating Three-Dimensional Shock Control Bumps
6th European Conference for Aerospace Sciences, Krakow, June 29 - July 03, 2015
Lutz, T.; Gansel, P. P.; Waldmann, A.; Zimmermann, D.-M.; Schulte am Hülse, S A.:
“Prediction and Measurement of the Common Research Model Wake at Stall Conditions”,
53rd AIAA Aerospace Sciences Meeting, Kissimmee (FL), USA, 5 – 9 January, AIAA 2015-1094, 2015,
accepted for publication in AIAA Journal of Aircraft, DOI 10.2514/1.C033351
Th. Lutz, D. Bekiropoulos, J. Illg, W. Würz, J. Dembowski, E. Krämer:
"RANS Based Prediction of the Airfoil Turbulent Boundary Layer – Trailing Edge Interaction Noise for Mildly Separated Flow Conditions"
12th German Wind Energy Conference DEWEK, 19./20. May 2015, Bremen, Germany
Jonas Illg, Thorsten Lutz and Ewald Krämer
Aeroacoustic Simulation of an Airfoil in Turbulent Inflow
Proc. 6th International Conference on Wind Turbine Noise, Glasgow, 20.-23. April 2015
Jonas Illg, Thorsten Lutz, Ingrid Neunaber und Ewald Krämer
Numerische Untersuchung von Vorder- und Hinterkantenlarm eines Profils in turbulenter Anströmung
41. Jahrestagung für Akustik DAGA, Nürnberg, 16. - 19. März 2015
Zimmermann, D.-M., Waldmann, A., Lutz, T., Krämer, E.:
Development of Flow Structures in the Near-field Wake Region of the Common Research Model,
5th CEAS Air & Space Conference, Delft, September 2015
Kim, W. Pascal, Th. Lutz
An accurate wind resource assessment in complex terrain using numerical simulations
12th German wind energy conference, DEWEK 2015, May, Bremen, Germany
Waldmann, A., Gansel. P. P., Lutz, T. and Krämer, E.:
“Unsteady Wake Flow Analysis of an Aircraft under low-speed Stall Conditions using DES and PIV”,
53rd AIAA Aerospace Sciences Meeting, Kissimmee (FL), USA, 5 – 9 January, AIAA 2015-1096, 2015
(DOI 10.2514/6.2015-1096)
http://arc.aiaa.org/doi/abs/10.2514/6.2015-1096
Kim Y, Schulz C, Lutz Th,
"Synthetic turbulence inflow method for atmospheric turbulence and its application in complex terrain",
EAWE PhD seminar 2015, Stuttgart, Germany
Kim Y, Weihing P, Schulz C, Jost E, Lutz Th,
“Turbulence inflow generation for a turbulent boundary layer over rough hills under neutral and stable conditions”,
Large wind-power plants: interaction, control and Integration. Windfarms 2015, July, Leuven, Belgium.
Bangga, T. Lutz and E. Krämer,
"Numerical investigation of unsteady aerodynamic effects on thick flatback airfoils",
German Wind Energy Conference 12 DEWEK 2015, 19-20 May 2015, Bremen, Germany.
Hutomo, G. Bangga, H. Sasongko,
"Numerical investigation of dynamic stall behavior on single bladed Darrieus turbine airfoil section",
2nd International Conference on Mechanical Engineering ICOME 2015, 3-5 September 2015, Bali, Indonesia.
Bangga, T. Lutz and E. Krämer,
"An examination of rotational effects on large wind turbine blades",
11th EAWE PhD Seminar on Wind Energy in Europe, 23-25 September 2015, Stuttgart, Germany.
Hoffrogge, C., Kraus, B., Yao, L., Passeck, S., Zimmermann, D.-M., Jost, E., Krämer, E.:
"Ein mobiler Flachwasserkanal zu Visualisierungszwecken",
Deutscher Luft- und Raumfahrtkongress, 22.-24. September 2015, Rostock, Germany
Kamruzzaman, D. Bekiropoulos, Th. Lutz, W. Würz and E. Krämer,
„A semi-empirical surface pressure spectrum model for airfoil trailing-edge noise prediction,“
Special Issue of the Int. Journal of Aeroacoustics, 2015
A. Fischer, T. Lutz, E. Krämer,
"Numerical investigations of an airfoil in the wake of a slotted cylinder",
11th EAWE PhD Seminar on Wind Energy in Europe, 23.-25. September 2015, Stuttgart, Germany.
Jost, T. Lutz, E. Krämer
"Steady and unsteady CFD power curve simulation of generic 10 MW turbines",
EAWE PhD Seminar Stuttgart, September 2015
Jost, T. Lutz, E. Krämer
"Numerische Untersuchung einer 10 MW Windenergieanlage mit elastischen Hinterkantenklappen",
Präsentation am STAB Workshop, Göttingen, 2015
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2014
K. Meister, T. Lutz and E. Krämer
"Simulation of a 5MW wind turbine in an atmospheric boundary layer", Journal of Physics: Conference Series (Vol. 555, No. 1, p. 012071)
Bogdanski, P. Gansel, T. Lutz and E. Krämer
"Impact of 3D Shock Control Bumps on Transonic Buffet", High Performance Computing in Science and Engineering '14, Springer.
http://link.springer.com/chapter/10.1007/978-3-319-10810-0_30
P. Wawrzinek, Th. Lutz and E. Krämer
"Numerical Studies of Turbulent Flow Influence on a Two-Element Airfoil",
Advances in Simulation of Wing and Nacelle Stall, Results of the Closing Symposium of the DFG Research Unit FOR 1066, December 1-2, 2014, Braunschweig, Germany
Ch. Schulz, T. Lutz and E. Krämer
"Simulation of wind turbines in complex terrain by means of direct CFD",
10th EAWE PhD Seminar on Wind Energy in Europe, 28.-30. October 2014, Orléans, France.
Klein, T. Lutz and E. Krämer
"CFD analysis of a 2-bladed multi-megawatt turbine",
10th EAWE PhD Seminar on Wind Energy in Europe, 28.-30. October 2014, Orléans, France.
Fischer, E. Jost, T. Lutz and E. Krämer:
Numerical investigations of a passive load alleviation technique for wind turbines
10th EAWE PhD Seminar on Wind Energy in Europe, 28.-30. October 2014, Orléans, France.
E. Jost, A. Fischer, T. Lutz and E. Krämer,
"CFD studies of a 10 MW wind turbine equipped with active trailing edge flaps",
10th EAWE PhD Seminar on Wind Energy ind Europe, 28.-30. October 2014, Orléans, France.
Mexnext-II: The Latest Results on Experimental Wind Turbine Aerodynamics
K. Boorsma, J.G. Schepers, S. Gomez-Iradi, H. A. Madsen, N. Sørensen and W. Z. Shen, C.Schulz, S. Schreck
EWEA 2014, Barcelona
https://www.ecn.nl/publications/PdfFetch.aspx?nr=ECN-M--14-018
CFD Performance Analyses fo Wind Turbines Operating in Complex Environments
P.Weihing, C.Schulz, Th.Lutz, E.Krämer
High Performance Computing in Science and Engineering ‘14
http://link.springer.com/chapter/10.1007%2F978-3-319-10810-0_27
Th. Lutz, B. Arnold, A. Wolf and E. Krämer:
Numerical Studies on a Rotor with Distributed Suction for Noise Reduction
J. Phys.: Conf. Ser. 524 012134 doi:10.1088/1742-6596/524/1/01213
http://iopscience.iop.org/1742-6596/524/1/012122
Th. Lutz, B. Arnold, D. Bekiropoulos, J. Illg, E. Krämer, A. Wolf, R. Hann and M. Kamruzzaman:
Prediction of Flow-Induced Noise Sources of Wind Turbines and Application Examples
Special Issue of the International Journal of Aeroacoustics
Wolf, Th. Lutz, W. Würz, E. Krämer, O. Stalnov and A. Seifert:
Trailing Edge Noise Reduction of Wind Turbine Blades by Active Flow Control
Wind Energy, 2014.
http://onlinelibrary.wiley.com/doi/10.1002/we.1737/abstract
Kamruzzaman, D. Bekiropoulos, A. Wolf, Th. Lutz, and E. Krämer:
Rnoise: A RANS Based Airfoil Trailing-edge Noise Prediction Model
AIAA2014-3305, 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, 2014.
Ch. Schulz, L. Klein, P. Weihing, Th. Lutz and E. Krämer:
CFD Studies on Wind Turbines in Complex Terrain under Atmospheric Inflow Conditions
J. Phys.: Conf. Ser. 524 012134 doi:10.1088/1742-6596/524/1/012134
http://iopscience.iop.org/1742-6596/524/1/012134?fromSearchPage=true
Weihing, K. Meister, Ch. Schulz, Th. Lutz and E. Krämer:
CFD Simulations on Interference Effects between Offshore Wind Turbines
J. Phys.: Conf. Ser. 524 012143 doi:10.1088/1742-6596/524/1/012143
http://iopscience.iop.org/1742-6596/524/1/012143?fromSearchPage=true
B. Arnold, D. Abzalilov, Th. Lutz and E. Krämer:
On the Effect of Boundary Layer Suction on the Boundary Layer State at the Trailing-Edge and Noise Reduction
54th Israel Annual Conference on Aerospace Sciences, 2014
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2013
Schulz, C.: Cfd of wind turbines in complex terrain. In: IEA R&D Wind Task 11 - Topical Expert Meeting Challenges on Wind Energy Deployment in Complex Terrain
P. Gansel, S. A. Illi, S. Krimmer, Th. Lutz and E. Krämer:
Unsteady CFD Simulation of the NASA Common Research Model in Low Speed Stall
to be published in: High Performance Computing in Science and Engineering ´13, Springer, Germany
Bogdanski, K. Nübler, Th. Lutz and E. Krämer:
Numerical Investigation of the Influence of Shock Control Bumps on the Buffet Characteristics of Transonic Airfoil
presentation at the 18. DGLR-Symposium of STAB, Stuttgart, Germany, November 6-7, 2012, paper submitted for publication
P. Colliss, H. Babinsky, K. Nübler and Th. Lutz:
A joint experimental and numerical approach to three-dimensional shock control bump research
submitted to AIAA journal
Nübler, S. P. Colliss, H. Babinsky, Th. Lutz and E. Krämer:
Numerical and experimental examination of shock control bump flow physics
High Performance Computing in Science and Engineering '12, Springer Berlin Heidelberg, DOI 10.1007/978-3-642-33374-3_25, 2013
A. Illi, C. Fingskes, Th. Lutz and E. Krämer:
Transonic Tail Buffet Simulations for the Common Research Model
31st AIAA Applied Aerodynamics Conference, San Diego, June 24-27, 2013.
A. Illi, Th. Lutz and E. Krämer:
Transonic Tail Buffet Simulations on the ATRA Research Aircraft
Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Volume 123, Springer, Germany, 2013.
A. Illi, P. Gansel, Th. Lutz and E. Krämer:
Hybrid RANS-LES Wake Studies of an Airfoil in Stall
CEAS Aeronautical Journal, Volume 4, Issue 2, pp 139-150, Springer, Germany, June 2013.
D. Matter, E. R. Busch, Th. Lutz, M. Keßler and E. Krämer:
Numerical investigation of a model propeller operating under off-design conditions
51th AIAA Aerospace Sciences Meeting, New Horizons Forum and Aerospace Exposition, Grapevine, Texas, January 7-10, 2013.
Th. Lutz, P. P. Gansel, J.-L. Godard, A. Grobushin, R. Konrath, J. Quest and S. M. B. Rivers:
Going for Experimental and Numerical Unsteady Wake Analyses Combined with Wall Interference Assessment by Using the NASA CRM Model in ETW
51th AIAA Aerospace Sciences Meeting, New Horizons Forum and Aerospace Exposition, Grapevine, Texas, January 7-10, 2013.
P. Colliss, H. Babinsky, K. Nübler and Th. Lutz:
Vortical structures on 3D shock control bumps, 51th AIAA Aerospace Sciences Meeting
51th AIAA Aerospace Sciences Meeting, New Horizons Forum and Aerospace Exposition, Grapevine, Texas, January 7-10, 2013
Bekiropoulos, Th. Lutz, E. Krämer:
Aeroacoustic Simulation of Airfoils Used in Onshore Wind Turbines
AIA-DAGA 2013, Conference on Acoustics, 18-21 March 2013, Merano, Alto Adige
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2012
Bogdanski, K. Nübler, T. Lutz and E. Krämer,
"Numerical Investigation of the Influence of Shock Control Bumps on the Buffet Characteristics of a Transonic Airfoil", New Results in Numerical and Experimental Fluid Mechanics IX, Springer.
http://link.springer.com/chapter/10.1007/978-3-319-03158-3_3
Engfer, E. Pfüller, M. Wiedemann, J. Wolf, Th. Lutz,E. Krämer:
Evaluation of the Aero-Optical Properties of the SOFIA Cavity by Means of Computational Fluid Dynamics and a Super Fast Diagnostic Camera
SPIE 2012, July 2012, Amsterdam, Netherlands
Bekiropoulos, R. M. Rieß, Th. Lutz, E. Krämer, D. Matha, M. Werner, P.W. Cheng:
Simulation of Unsteady Aerodynamic Effects on Floating Offshore Wind Turbines
11th German Wind Energy Conference DEWEK, 7-8 November 2012, Bremen, Germany
P. Gansel, P. Dürr, M. Baumann, Th. Lutz and E. Krämer:
Influence of Meshing on Flow Simulation in the Wing-Body Junction of Transport Aircraft
to be published in: Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Springer, Germany, 2012.
Meister, Th. Lutz and E. Krämer:
Simulation of a 5MW wind turbine in an atmospheric boundary layer
The Science of Making Torque from Wind, 09-11 Oktober, Oldenburg, Germany, 2012
Klein, Th. Lutz, E. Krämer, K. Richter, A.D. Gardner and A.R.M. Altmikus:
Numerical Comparison of Dynamic Stall for Two-Dimensional Airfoils and an Airfoil Model in the DNW-TWG
Journal of the American Helicopter Society, Vol. 57, Number 4, October 2012
P. Gansel, S. A. Illi, Th. Lutz and E. Krämer:
Numerical Simulation of Low Speed Stall and Analysis of Turbulent Wake Spectra
Proc. 15th International Conference on Fluid Flow Technologies, Budapest, Hungary, September 4-7, Vol. I, pp. 199-206, 2012.
P. Gansel, S. A. Illi, A. Kalimullina and Th. Lutz
The Spectral Analysis of Unsteady Pressure Coefficient at the Wing Trailing Edge
16th International Conference on the Methods of Aerophysical Research, Kazan, Russia, August 20 - 26, 2012.
Kamruzzaman, Th. Lutz and E. Krämer:
Study on Anisotropy in Synthetic Turbulence Generation Methods,
extended abstract submitted to AIAA/CEAS Aeroacoustics Conference, June, 2012
Kamruzzaman, D. Bekiropoulos, A. Wolf, Th. Lutz, W. Würz and E. Krämer:
A Semi-empirical Wall Pressure Fluctuation Spectrum and Far-field Trailing-edge Noise Prediction Model,
International Journal of Aeroacoustics, 2012
Wolf, Th. Lutz, and E. Krämer:
Modelling of Active Flow Control for Noise Reduction of Future Wind Turbines,
DEWEK, Bremen, 2012
A. Illi, Th. Lutz and E. Krämer:
On the capability of unsteady RANS to predict transonic buffet
Third Symposium "Simulation of Wing and Nacelle Stall", Braunschweig, Germany, June 22nd - 23rd 2012
Meister, Th. Lutz and E. Krämer:
Time - Resolved CFD Simulation of a turbulent atmospheric boundary layer interacting with a wind turbine
Euromech Colloquium [528], 22-24 February, Oldenburg, Germany, 2012
P. Colliss, K. Nübler, P. J. K. Bruce, H. Babinsky, Th. Lutz and E. Krämer:
An experimental investigation of three-dimensional shock control bumps applied to transonic airfoils
50th AIAA Aerospace Sciences Meeting, Nashville, Tennessee, AIAA 2012-43
Nübler, S. P. Colliss, Th. Lutz,E. Krämer and H. Babinsky:
Shock Control Bump Robustness Enhancement
50th AIAA Aerospace Sciences Meeting, Nashville, Tennessee, AIAA 2012-0046
Nübler, S. P. Colliss, Th. Lutz, H. Babinsky and E. Krämer:
Joint wind tunnel and CFD examination of flow over shock control bumps
47th International Symposium of Applied Aerodynamics, Paris, France, 3b_05
Nübler, S. P. Colliss, Th. Lutz, H. Babinsky and E. Krämer:
Numerical and experimental examination of shock control bump flow physics
High Performance Computing in Science and Engineering '12, Springer 2012
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2011
Klein, S. Illi, K. Nübler, Th. Lutz and E. Krämer:
Wall Effects and Corner Separations for Subsonic and Transonic Flow Regimes
High Performance Computing in Science and Engineering '11, Springer, Germany
Klein, K. Richter, A.D. Gardner, A.R.M. Altmikus, Th. Lutz and E. Krämer:
Numerical Comparison of Dynamic Stall for 2D-Airfoils and an Airfoil Model in the DNW-TWG
Presented at: 37th European Rotorcraft Forum, September 13-15, 2011, Gallarate, Varese - Italy
Meister, Th. Lutz and E. Krämer:
Grid dependency studies on tip vortex preservation in wind turbine CFD simulations
Proceedings of Wake Conference, 8-9 June, 2011, Visby, Sweden.
Kamruzzaman, Th. Lutz, W. Würz and E. Krämer:
On the Length Scales of Turbulence for Aeroacoustic Applications
AIAA Paper No. 2011-2734. Proceedings of 17th AIAA/CEAS Aeroacoustics Conference, 6-8 June 2011, Portland, Oregon, USA.
Kamruzzaman, Th. Lutz, K. Nübler and E. Krämer:
Implementation and Verification of an Aeroacoustic Wind Turbine Blade Analysis Tool
Proceedings of Fourth International Meeting on Wind Turbine Noise, 12-14 April, 2011, Rome, Italy.
Wolf, Th. Lutz, W. Würz, O. Stalnov and A. Seifert:
Trailing edge noise reduction of wind turbine airfoils by active flow control
Proceedings of Fourth International Meeting on Wind Turbine Noise, 12-14 April, 2011, Rome, Italy.
Illi, Th. Lutz and E. Krämer:
Improved physical understanding and modeling – DES/LES & PIV
CFD and Experiment – Integration of Simulation, Göttingen, Germany, April 5th - 6th 2011
Kamruzzaman, M.:
Comprehensive Evaluation and Assessment of Trailing Edge Noise Prediction Based on Dedicated Measurements,
Noise Control Engineering Journal, 2011.
Th. Lutz, K. Meister and E. Krämer:
Near wake studies of the MEXICO Rotor
EWEA-2011, Brüssel, 14-17 März 2011
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2010
Kamruzzaman, Th. Lutz, and E. Krämer:
Improved Wind Turbine Noise Prediction Tools for Low Noise Airfoil Design
DEWEK-2010, Bremen, 17-18 November, 2010
Wolf, Th. Lutz, W. Würz, O. Stalnov and E. Krämer:
Impact of Suction on Boundary-Layer and Noise Emission of Wind Turbine airfoils
DEWEK-2010, Bremen, 17-18 November, 2010
Meister, Th. Lutz, and E. Krämer:
Consideration of unsteady inflow conditions in wind turbine CFD simulations
DEWEK-2010, Bremen, 17-18 November, 2010
Th. Lutz, K. Meister and E. Krämer:
Aerodynamic and Acoustic Design of Wind Turbine Airfoils with Trailing-Edge Flap
DEWEK-2010, Bremen, 17-18 November, 2010
Kamruzzaman, Th. Lutz, W. Würz , W. Shen, W. Zhu, M. O. L. Hansen, F. Bertagnolio and H. Aa. Madsen:
Validations and Improvements of Airfoil Trailing-edge Noise Prediction Models Using Detailed Experimental Data
published in online at Wind Energy, DOI: 10.1002/we.505, November, 2011
C.C. Heister, J. Raddatz and A. Klein:
Accurate Numerical Flow Simulation of Hovering Rotors using different Transition Prediction Methods
Presented at: 36th European Rotorcraft Forum, September 7-9, 2010, Paris, France
Illi, Th. Lutz and E. Krämer:
Simulation of pressure and shock induced separation using DES implementations in the DLR-TAU Code
Second Symposium "Simulation of Wing and Nacelle Stall", Braunschweig, Germany, June 22nd - 23rd 2010
Kamruzzaman, D. Bekiropoulos, A. Wolf, Th. Lutz, W. Würz and E. Krämer:
Study of Turbulent Boundary Layer Wall Pressure Fluctuations Spectrum Models for Trailing-edge Noise Prediction
Proc. of 15th Int. Conf. on the Methods of Aerophysical Research (ICMAR 2010), Akademgorodok, Novosibirsk Russia, 1-6 Nov., 2010
Kamruzzaman, Th. Lutz, A. Herrig and E. Krämer:
Semi-empirical Modeling of Turbulent Anisotropy for Airfoil Self Noise Prediction
AIAA Journal, 50(1): 46-60, January, 2012, DOI: 10.2514/1.56982. Old version in Proc. of 16th AIAA/CEAS Aeroacoustics Conference, 7-8 June, 2010, Sweden, AIAA-2010-3878
Herrig, M. Kamruzzaman, W. Würz and S. Wagner:
Broadband Airfoil Trailing-edge Noise Prediction from Measured Surface Pressures and Spanwise Length Scales
(accepted for publication in Int. Journal of Aeroacoustics)
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2009
Wolf, Th. Lutz and E. Krämer:
Active Flow Control for Noise Reduction and Performance Improvement of Future Generation Wind Turbines
Published in Proceedings of EAWE 2009 Conference at Durham University September 27 - October 1 , 2009, Durham, England
Wolf, D. Henes, S. Bogdanski, Th. Lutz and E. Krämer:
Statistical Analysis of Parameter Variations using the Taguchi Method
BMWI-Verbundvorhaben MUNA, to be published
Wolf, D. Henes, S. Bogdanski, Th. Lutz and E. Krämer:
Best Practice Guidlines for the Taguchi Method
BMWI-Verbundvorhaben MUNA, to be published
Kamruzzaman, K. Meister, Th. Lutz, M. Kühn and E. Krämer:
Wind Turbine Aerodynamics and Aeroacoustics at University of Stuttgart - An Overview of Research and Development
Published in Proceedings of 1st Int. Conf. on the Developments in Renewable Energy Technology (ICDRET'09), December 17-19, 2009, Dhaka, Bangladesh
Meister, Th. Lutz and E. Krämer:
Development of a process chain for detailed wake simulation of horizontal axis wind turbines
Presented at EUROMECH[508] - Wind turbine wakes, Oktober 20-22, 2009, Madrid, Spain
Kamruzzaman, Th. Lutz, A. Ivanov, A. Herrig, W. Würz and E. Krämer:
Evaluation of Measured Anisotropic Turbulence Two-point Correlation Data for the Accurate Prediction of the Turbulence Noise Sources
AIAA Paper, 2009-3313-818, 15th AIAA/CEAS Aeroacoustics Conference, Miami, USA, 11-13 May, 2009
Kamruzzaman, A. Herrig, Th. Lutz, W. Würz, E. Krämer and S. Wagner:
Comprehensive Evaluation and Assessment of Trailing Edge Noise Prediction Based on Dedicated Measurements
Noise Control Engineering Journal, 59(1):54-67, Jan-Feb., 2011. Also presented in Wind Turbine Noise-2009, 17-19 June, Aalborg, Denmark
Klein, K. Richter, A. Altmikus, Th. Lutz and E. Krämer:
Unsteady Criteria for Rotor Blade Airfoil Design
Presented at: 35th European Rotorcraft Forum, September 22-25, 2009, Hamburg, Germany
Schmid, Th. Lutz and E. Krämer:
Impact of Modelling Approaches on the Prediction of Ground Effect Aerodynamics
Journal of Engineering Applications of Computational Fluid Mechanics,
Vol.3, No.3, September 2009.
Schmid, Th. Lutz and E. Krämer:
Passive control of the unsteady flow inside the SOFIA telescope port by means of a porous fence
Third Symposium on Hybrid RANS-LES Methods, 10-12 June 2009, Gdansk, Poland.
König, M. Pätzold, Th. Lutz, E. Krämer, H. Rosemann, K. Richter and H. Uhlemann:
Numerical and Experimental Validation of Three-Dimensional Shock Control Bumps
Journal of Aircraft, Vol. 46, No. 2, S. 675-682, 2009.
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2008
Hirner, Th. Lutz and E. Krämer:
Reduction of Noise Emission of Suboptimal Operating Propellers
Paper Nr: 71183, 7th International Airship Convention 2008, Friedrichshafen 9-11 October 2008
König, Th. Lutz and E. Krämer:
Numerical Simulation of a Transonic Wind Tunnel Experiment
High Performance Computing in Science and Engineering '08, Stuttgart, September 29-30, 2008
Schmid, Th. Lutz and E. Krämer:
DES Simulations of the Unsteady Flow Field Around the Stratospheric Observatory For Infrared Astronomy SOFIA
XXII International Congress of Theoretical and Applied Mechanics, Adelaide, Australia, 25 - 28 August 2008
Schmid, Th. Lutz,E. Krämer and T. Kühn:
Passive Control of the Flow Around the Stratospheric Observatory For Infrared Astronomy
AIAA paper 2008-6717, 26th AIAA Applied Aerodynamics Conference, Hawaii, USA, 18 - 21 August 2008
König, M. Pätzold, Th. Lutz, E. Krämer, H. Rosemann, K. Richter and H. Uhlemann:
Numerical and Experimental Validation of Three-Dimensional Shock Control Bumps
AIAA paper 2008-4001, 4th AIAA Flow Control Conference, Seattle, WA, USA, 23 - 26 July 2008
Ogawa, H. Babinsky, M. Pätzold and Th. Lutz:
Shock Boundary-Layer Interaction Control Using Three-dimensional Bumps for Transonic Wings
AIAA Journal, Vol. 46, No. 6, June 2008
Kamruzzaman, Th. Lutz, A. Herrig and E. Krämer:
RANS Based Prediction of Airfoil Trailing Edge Far-Field Noise: Impact of Isotropic and Anisotropic Turbulence
AIAA paper 2008-2867, 14th AIAA/CEAS Aeroacoustics Conference, Vancouver, Canada, 5 - 7 May 2008
Schmid, Th. Lutz and E. Krämer:
Numerical Simulation of the Flow Field Around the Stratospheric Observatory For Infrared Astronomy
Springer, Berlin Heidelberg New York, ISBN 978-3-540-74458-0, 2008
König, M. Pätzold, Th. Lutz and E. Krämer:
Shock Control Bumps on Flexible and Trimmed Transport Aircraft in Transonic Flow
Springer, Berlin Heidelberg New York, ISBN 978-3-540-74458-0, 2008
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2007
Schmid, Th. Lutz and E. Krämer:
Simulation of the Flow Around the Stratospheric Observatory For Infrared Astronomy SOFIA Using URANS and DES
High Performance Computing in Science and Engineering, Garching/Munich 2007
Lasauskas, Th. Lutz and M. Dietz:
Influence of Trailing Edge Tab on Moment Characteristics of NACA 23012 Airfoil
Aviation, Vol. XI, No. 4, 2007
Jakobi:
Verfahren zur Simulation der nichtlinearen Aerodynamik von Luftschiffkonfigurationen
VDI Fortschritt-Berichte, Reihe 7: Strömungstechnik, Nr. 490, ISBN 978-3-18-349007-3, 2007.
Kamruzzaman, Th. Lutz and E. Krämer:
An Approach to RANS Based Prediction of Airfoil Trailing Edge Far-Field Noise
Second International Meeting on Wind Turbine Noise, Lyon France September 20-21 2007
Hirner, F. Dorn, Th. Lutz and E. Krämer:
Improvement of Propulsive Efficiency by Dedicated Stern Thruster Design
AIAA-2007-7702, 7th AIAA Aviation Technology, Integration and Operations Conference (ATIO), Belfast, Northern Ireland, 18-20 September 2007
Kamruzzaman, Th. Sonar, Th. Lutz and E. Krämer:
A New Meshless Collocation Method for Partial Differential Equations
Journal of Comm. in Num. Meth. in Eng., 24(4): 1617-1639, 2007
Schmid, Th. Lutz and E. Krämer:
Simulation of the Unsteady Cavity Flow of the Stratospheric Observatory For Infrared Astronomy
IUTAM Symposium on Unsteady Separated Flows and their Control, Braza, Marianna; Hourigan, K. (Eds.), 2009, ISBN: 978-1-4020-9897-0
Th. Lutz, A. Herrig, W. Würz, M. Kamruzzaman and E. Krämer:
Design and Wind-Tunnel Verification of Low-Noise Airfoils for Wind Turbines
AIAA Journal, Vol. 45, No. 4, April 2007
Ogawa, H. Babinsky, M. Pätzold and Th. Lutz:
Shock Boundary-Layer Interaction Control Using Three-dimensional Bumps for Transonic Wings
presented as AIAA paper 2007-324, 45th AIAA Aerospace Sciences Meeting and Exhibit, 8-11 January 2007, Reno, Nevada
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2006
Th. Lutz, W. Würz, A. Herrig, K. Braun and E. Krämer, J.G. Schepers, A.P.W.M. Cuvers, S. Oerlemans, A. Matesanz, R. Ahrelt, T. Maeder, Herr S.:
New Results from the European SIROCCO Project: Silent Rotors by Acoustic Optimization
DEWEK 2006, 8th German Wind Energy Conference, Bremen, 22.-23. November 2006
Th. Lutz, A. Herrig, W. Würz, M. Kamruzzaman and E. Krämer:
Design and Wind-Tunnel Verification of Low-Noise Airfoils for Wind Turbines
AIAA paper 2006-3322, 24th AIAA Applied Aerodynamics Conference, San Francisco, California, USA, 5 - 8 June 2006
Pätzold, Th. Lutz,E. Krämer and S. Wagner:
Numerical Optimization of Finite Shock Control Bumps
44th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, USA, 9 - 12 January, 2006
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2005
Th. Lutz:
Aerodynamic Interference Effects of Airships
Second International Symposium on Transdisciplinary Fluid Integration, Hyuga, Miyazaki, Japan, October 26-27, 2005
Th. Lutz, A. Herrig, W. Würz, K. Braun and E. Krämer:
Constrained Aerodynamic & Aeroacoustic Design of Wind-Rotor Airfoils
Wind Turbine Noise: Perspectives for Flow Control, Berlin, October 17-18, 2005
Hirner, Th. Lutz and E. Krämer:
Entwurf eines Verstellpropellers für die Stratosphärenplattform Luftwurm 2.0
Paper Nr: DGLR-2005-173, Deutscher Luft- und Raumfahrtkongress 2005, Friedrichshafen, September 26-29, 2005
Huminic and Th. Lutz:
CFD Study of Ground Simulation Techniques
HEFAT2005: 4th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Cairo, Egypt, September 19-22, 2005
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2004
König, M. Kutzbach and Th. Lutz:
Extensions of the Optimization Environment POEM with Respect to Aeroelastic Effects
14th DGLR-Symposium of STAB, 25th anniversary of STAB, Bremen, November 16-18, 2004
Th. Lutz, W. Würz, A. Herrig, K. Braun and S. Wagner:
Numerical Optimization of Silent Airfoil Sections
DEWEK 2004, 7th German wind energy conference, Wilhelmshaven, October 20/21, 2004
Kutzbach, Th. Lutz and S. Wagner:
RANS-basierte direkt numerische Optimierung adaptiver Flügel
DGLR Jahrestagung 2004, Dresden, 20. - 23. September 2004
Kutzbach, Th. Lutz and S. Wagner:
Investigations on Shock Control Bumps for Infinite Swept Wings
2nd AIAA Flow Control Conference, Portland, Oregon, USA, June 28 - July 1, 2004
Th. Lutz:
Aerodynamic Shape Optimization
Colloquium on Fluid Dynamics Research - Selected Recent Results, University of Stuttgart, May 7, 2004
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2003
Funk, Th. Lutz and S. Wagner:
Experimental Investigations on Hull-Fin Interferences of the LOTTE Airship
Aerospace Science and Technology, Vol.7,2003
Th. Lutz, P. Funk, A. Jakobi and S. Wagner:
Theoretische und experimentelle Untersuchungsverfahren in der Luftschiffaerodynamik
Leichter als Luft - Transport- und Trägersysteme - Ballone, Luftschiffe, Plattformen; Ed.: J. K. Bock und B. Knauer; Verlag Frankenschwelle, 2003; ISBN 3-86180-139-6
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2002
Fokin, L. Gebhardt, Th. Lutz and S. Wagner:
A Field-Panel Method for Transonic 3D Wing Calculation and Optimisation
Submitted for publication in ZAMM
Sommerer, Th. Lutz and S. Wagner:
Eine parallele Optimierungsumgebung zum Entwurf von Profilgeometrien
Proceedings of the DGLR Jahrestagung 2002, Stuttgart, Germany, September 23 - 26, 2002
Funk, Th. Lutz and S. Wagner:
Experimentelle Untersuchungen von Rumpf-Leitwerk Interferenzen bei Luftschiffen
Tagungsband Deutscher Luft- und Raumfahrtkongress 2002, Stuttgart, 23.-26. September 2002
Wadehn, A. Sommerer, Th. Lutz, D. Fokin, G. Pritschow and S. Wagner:
Structural Concepts and Aerodynamic Design of Shock Control Bumps
Proceedings 23nd ICAS Congress, Toronto, Canada, September 8 - 13, 2002, ICAS Paper 66R1.1
Th. Lutz, A. Sommerer and S. Wagner:
Parallel Numerical Optimisation of Adaptive Transonic Airfoils
Symposium Transsonicum IV, Göttingen, Germany, September 2 - 6, 2002
In: Fluid Mechanics and its Applications, Vol. 73, Kluwer Academic Publishers, ISBN 1-4020-1608-5, 2003
Th. Lutz, P. Funk, A. Jakobi and S. Wagner:
Summary of Aerodynamic Studies on the LOTTE Airship
4th International Airship Convention and Exhibition, Cambridge, England, July 28-31, 2002
Gebhardt, D. Fokin, Th. Lutz and S. Wagner:
An Implicit-Explicit Dirichlet-based Field Panel Method for Transonic Aircraft Design
AIAA-Paper 2002-3145, presented at the 20th AIAA Applied Aerodynamics Conference, June 24-26, 2002, St. Louis, Missouri, USA.
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2001
Th. Lutz, P. Funk, A. Jakobi and S. Wagner:
Calculation of the Propulsive Efficiency for Airships with Stern Thruster
14th AIAA Lighter-Than-Air Technical Committee Convention and Exhibition, Akron, Ohio, USA, July 15-19, 2001
Funk, A. Jakobi, Th. Lutz and S. Wagner:
Experimental Investigations in the Tail Region of an Airship Configuration
14th AIAA Lighter-Than-Air Technical Committee Convention and Exhibition, Akron, Ohio, USA, July 15-19, 2001
Jakobi, P. Funk, Th. Lutz and S. Wagner:
Modelling of Airship Wakes Applying Higher Order Panel Elements
14th AIAA Lighter-Than-Air Technical Committee Convention and Exhibition, Akron, Ohio, USA, July 15-19, 2001
Fokin, L. Gebhardt, Th. Lutz and S. Wagner:
A Field-Panel Approach for Flow Calculation about 3D Transonic Configurations.
Proceedings BEM 23 Conference, May 7-9, 2001, Lemnos, Greece
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 2000
Th. Lutz:
Subsonic and Transonic Airfoil Design Applying Numerical Optimization Techniques
Proceedings Conference on Actual Problems of Mathematics and Mechanics, Kazan State University, Kazan, Russische Föderation, October 1-3, 2000
Th. Lutz and S. Wagner:
Numerical Shape Optimization of Subsonic Airfoil Sections
Proceedings ECCOMAS 2000: European Congress on Computational Methods in Applied Sciences and Engineering, September 11-14, 2000, Barcelona, Spain
Sommerer, Th. Lutz and S. Wagner:
Design of Adaptive Transonic Airfoils By Means of Numerical Optimization
Proceedings ECCOMAS 2000: European Congress on Computational Methods in Applied Sciences and Engineering, September 11-14, 2000, Barcelona, Spain
Sommerer, Th. Lutz and S. Wagner:
Numerical Optimization of Adaptive Transonic Airfoils With Variable Camber
Proceedings 22nd ICAS Congress, Harrogate, United Kingdom, August 27 - September 1, 2000, ICAS Paper ICA2.111
Th. Lutz, P. Funk, A. Jakobi and S. Wagner:
Considerations on Laminar Flow for a Stratospheric Airship Platform
Proceedings 3rd International Airship Convention and Exhibition, Friedrichshafen, July 1-5, 2000
Funk, A. Jakobi, Th. Lutz and S. Wagner:
Experiments on the Flowfield of an Inclined Airship Body
Proceedings 3rd International Airship Convention and Exhibition, Friedrichshafen, July 1-5, 2000
Jakobi, P. Funk, Th. Lutz and S. Wagner:
Calculation of Aerodynamic Forces on Inclined Airship Bodies - Boundary-Layer Calculation Method
Proceedings 3rd International Airship Convention and Exhibition, Friedrichshafen, July 1-5, 2000
Th. Lutz, W. Würz and S. Wagner:
Numerical Optimization and Wind-Tunnel Testing of Low Reynolds-Number Airfoils
Proceedings Conference on: Fixed, Flapping and Rotary Wing Vehicles At Very Low Reynolds Numbers, University of Notre Dame, Indiana, USA, June 5 - 7, 2000
Th. Lutz:
Airfoil Design and Optimization
GAMM 2000 Conference, April 2-7, 2000, Göttingen, Germany
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 1999
Th. Lutz:
Berechnung und Optimierung subsonisch umströmter Profile und Rotationskörper
VDI Fortschritt-Berichte, Reihe 7: Strömungstechnik, Nr. 378, ISBN 3-18-337807-8
Th. Lutz, A. Sommerer and S. Wagner:
Optimierung widerstandsarmer Strömungskörper
IVS Schriftenreihe, Vol. 2, No. 2, 1999
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie 1998
Th. Lutz and S. Wagner:
Numerical Shape Optimization of Natural Laminar Flow Bodies
Proceedings of the 21st ICAS Congress, September 13-18, 1998, Melbourne, Australia
Th. Lutz, P. Funk, A. Jakobi and S. Wagner:
Aerodynamic Investigations on Inclined Airship Bodies
Proceedings of the Second Biennial International Airship Convention and Exhibition, Bedford, Great Britain, June 26-28, 1998
Jakobi, P. Funk, Th. Lutz and S. Wagner:
Aerodynamische Untersuchungen an angestellten Luftschiffkörpern
DGLR Workshop II, Flugsysteme leichter als Luft, Zeppelinheim, April 17-18, 1998
Veröffentlichungen Luftfahrzeugaerodynamik und Windenergie Vor 1998
Th. Lutz and S. Wagner:
Drag Reduction and Shape Optimization of Airship Bodies
Journal of Aircraft, Vol.35, No. 3, 1998, pp. 345-351, see also AIAA Paper 97-1483
Th. Lutz, U. Rüger and S. Wagner:
Theoretische Untersuchungen zur Minimierung des aerodynamischen Widerstandes von Luftschiffrümpfen
DGLR Fachausschusstagung S 2.3, September 25, 1996, Dresden, Germany
Th. Lutz, D. Leinhos and S. Wagner:
Theoretical Investigations of the Flowfield of Airships with a Stern Propeller
Proceedings International Airship Convention and Exhibition, Bedford, Great Britain, July 5-7, 1996
Th. Lutz, H. Schweyher, S. Wagner and R. Bannasch:
Shape Optimization of Axisymmetric Bodies in Incompressible Flow
Proceedings 2nd International Airship Conference, Stuttgart/Friedrichshafen, 3.-4. July 3-4, 1996
Schweyher, Th. Lutz and S. Wagner:
An Optimization Tool for Axisymmetric Bodies of Minimum Drag
Proceedings 2nd International Airship Conference, Stuttgart/Friedrichshafen, July 3-4, 1996
Th. Lutz, S. Wagner and E. Schmidt:
Berechnung der Umströmung von Luftschiffrümpfen
Proceedings Luftschiff Kolloquium II, Lübbenau/Spreewald, Mai 13-14, 1994
Th. Lutz, E. Schmidt and S. Wagner:
An Efficient Calculation Method for the Determination of Force and Moment Coefficients on a Body with Boundary Layer Separation under Various Onset Flow Conditions
Proceedings International Airship Conference, Stuttgart, June 24-25, 1993
Dr.-Ing. Thorsten Lutz
Thorsten Lutz
Dr.-Ing.Leiter Luftfahrzeugaerodynamik / Leiter Windenergie