open circuit subsoni wind turbine engineering educational equipment Hydrodynamics Experiment Apparatus

ZM9103 open circuit subsoni wind turbine engineering educational equipment Hydrodynamics Experiment Apparatus

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.

It is 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 flows around a model, such as an aerofoil, in a measuring section. The air is then decelerated in a diffuser and pumped back into the open by a fan.

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 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 trainer is equipped with an electronic two-component force sensor. Lift and drag are detected and displayed digitally. The air velocity in the measuring section is displayed on the inclined tube manometer. The tube manometers or the electronic pressure measurement are recommended for measuring the pressure distribution on bodies.

By using the system for data acquisition, the measured values for velocity, forces, moment, displacement/angle, and differential pressure can be transferred to a PC where they can be analysed

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

wide range of accessories available

transparent, closed measuring section

inlet contour, nozzle and diffuser made of GRP

variable-speed fan motor for energy-efficient operation

flow straightener reduces turbulence

electronic two-component force sensor for measuring the flow forces

inclined tube manometer for displaying the air velocity

digital display of drag and lift

display of measured values for velocity, forces, moment, displacement/angle, and differential pressure using system for data acquisition

Technical data

Measuring section

flow cross-section WxH: 292x292mm

length: 420mm

wind velocity: 3,1…28m/s

Axial fan

power consumption: 2,2kW

Measuring ranges

force:

lift: ±4N

drag: ±4N

velocity: 3,1…28m/s

angle: ±180°

230V, 50Hz, 1 phase

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

UL/CSA optional

Dimensions and weight

LxWxH: 2870x890x1540mm

Weight: approx. 250kg