Veröffentlichungen
2013
S. 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
S. 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
K. 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
S. 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.
S. A. Illi, Th. Lutz and E. Krämer:
Transonic Tail Buffet Simulations on the ATRA Research Aircraft
to be published in: Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Springer, Germany, 2013.
S. 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.
M. 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.
S. 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
D. 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
2012
C. 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
D. 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. 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
18. DGLR-Symposium of STAB, Stuttgart, Germany, November 6-7, 2012.
A. 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. 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. 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.
M. Kamruzzaman, Th. Lutz and E. Krämer:
Study on Anisotropy in Synthetic Turbulence Generation Methods,
extended abstract submitted to AIAA/CEAS Aeroacoustics Conference, June, 2012
M. 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,
to be submitted to the International Journal of Aeroacoustics, 2012
S. 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
K. 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
S. 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
K. 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
K. 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
K. 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, to be published
2011
A. 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
A. 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
K. 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.
M. 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.
M. 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.
A. 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.
S. 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
Th. Lutz, K. Meister and E. Krämer:
Near wake studies of the MEXICO Rotor
EWEA-2011, Brüssel, 14-17 März 2011
2010
M. Kamruzzaman, Th. Lutz, and E. Krämer:
Improved Wind Turbine Noise Prediction Tools for Low Noise Airfoil Design
DEWEK-2010, Bremen, 17-18 November, 2010
A. 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
K. 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
M. 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
S. 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
M. 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
M. 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
A. 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)
2009
A. 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
A. 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
A. Wolf, D. Henes, S. Bogdanski, Th. Lutz and E. Krämer:
Best Practice Guidlines for the Taguchi Method
BMWI-Verbundvorhaben MUNA, to be published
M. 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
K. 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
M. 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
M. 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
A. 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
S. 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.
S. 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.
B. 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.
2008
A. 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
B. 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
S. 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
S. 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
B. 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
H. 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
M. 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
S. 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
B. 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
2007
S. 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
E. Lasauskas, Th. Lutz and M. Dietz:
Influence of Trailing Edge Tab on Moment Characteristics of NACA 23012 Airfoil
Aviation, Vol. XI, No. 4, 2007
A. Jakobi:
Verfahren zur Simulation der nichtlinearen Aerodynamik von Luftschiffkonfigurationen
VDI Fortschritt-Berichte, Reihe 7: Strömungstechnik, Nr. 490, ISBN 978-3-18-349007-3, 2007.
M. 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
A. 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
M. 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
S. 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
H. 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
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
M. 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
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
A. 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
A. 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
2004
B. 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
M. Kutzbach, Th. Lutz and S. Wagner:
RANS-basierte direkt numerische Optimierung adaptiver Flügel
DGLR Jahrestagung 2004, Dresden, 20. - 23. September 2004
M. 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
2003
P. 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
2002
D. Fokin, L. Gebhardt, Th. Lutz and S. Wagner:
A Field-Panel Method for Transonic 3D Wing Calculation and Optimisation
Submitted for publication in ZAMM
A. 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
P. 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
W. 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
L. 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.
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
P. 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
A. 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
D. 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
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
A. 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
A. 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
P. 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
A. 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
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
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
A. 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
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
H. 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