A wind tunnel is the classic experiment system for aerodynamic flow experiments. The model being studied remains at rest while the flow medium is set in motion, and thus the desired flow around the model is generated. An “Eiffel” type open wind tunnel used to demonstrate and measure the aerodynamic properties of various models. For this purpose, air is drawn in from the environment and accelerated. The air is then decelerated in a diffuser and pumped back into the open by a fan. The air flows around a model, such as an aero foil, in a measuring section. 

The built-in axial fan with outlet guide vane system and a variable-speed drive is characterised by an energy-efficient operation at high efficiency. Air velocities of up to 28m/s can be reached in this open wind tunnel. The carefully designed nozzle contour and a flow straightener ensure a uniform velocity distribution with little turbulence in the closed measuring section. The flow cross-section of the measuring section is square. The air velocity in the measuring section is displayed on the inclined tube manometer. The trainer is equipped with an electronic two-component force sensor. Lift and drag are detected and displayed digitally. Extensive accessories allow a variety of experiments, for example lift measurements, pressure distributions, boundary layer analysis or visualisation of streamlines.

Specification:

Experiments from the field of aerodynamics and fluid mechanics with an “Eiffel” type wind tunnel

Electronic two-component force sensor for measuring the drag and lift forces

Digital display of drag and lift on the measuring amplifier

Angle display on a scale

Inlet contour, nozzle and diffuser made of GRP

Variable-speed fan motor for energy-efficient operation

Flow straightener reduces turbulence

Wide range of accessories available

Transparent, closed measuring section

Inclined tube manometer for displaying the air velocity.

Technical data:

Measuring section

Wind velocity: 3,1…28m/s

Length: 420mm

Flow cross-section WxH: 292x292mm

Axial fan

Power consumption: 2,2kW

Measuring ranges

Force:

Drag: ±4N

Velocity: 3,1…28m/s

Lift: ±4N

Angle: ±180°

230V, 50Hz, 1 phase

230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases.