Small Supersonic Wind Tunnel

Institute of Aerodynamics and Gas Dynamics

Small Supersonic Wind Tunnel

The calibration model measuring section is a Small Supersonic Wind Tunnel which is used for investigations on smaller models but also for the calibration of sensors.

The calibration model measuring section is a small supersonic wind tunnel which works according to the so-called "suck down" principle. In this operating mode, dried air is sucked from a reservoir into a vacuum system. The strong reduction of the temperature as a result of expansion into the vacuum makes it necessary to dry the air.
The acceleration of the dried air to supersonic speeds is achieved by means of a pair of laval nozzles. The nozzles are designed as fast-expanding "short expansion" corner laval nozzles with a fixed nozzle contour corresponding to the respective nominal power number.

The wind tunnel is primarily used for calibration but also for the development of measurement technology.

In addition, an easy-to-operate test facility is available, which is excellently suitable for the independent execution of student work.


Mach numbers

1.5 - 3.0

Cross section of the test section

0.12 m x 0.08 m

Measurement time [s]


Small Supersonic Wind Tunnel
Small Supersonic Wind Tunnel


This image shows Uwe Gaisbauer

Uwe Gaisbauer

Head of working group Experimental Gas Dynamics

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