Open Wind Tunnel

Open Wind Tunnel

Wind Tunnel has been developed to perform various experiments of aerodynamics and fluid flow. This is a open circuit Wind Tunnel provides a region of controlled air flow into which models can be fitted at downstream of working section. The Tunnel consists of bell mouth shaped entry to guide the air smoothly into settling chamber and stabilizes the air flow this follows working section for test section where various models can be tested. Test section with acrylic sheet, will be provided for visual observation. Working section is followed by diffuser section which reduces the dynamic pressure at the exit. A fan coupled with motor is used to produce desired wind velocity.

Learning Objectives / Experiments:

• Experiments with accessories.
• Determine drag and lift coefficients for different models.
• Pressure distribution on drag bodies immersed in a flow.
• Boundary layer analysis.
• Investigation of flutter.
• Wake measurement.
• In conjunction with the fog generator.
• 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 pressure.
• Displacement/angle, velocity and force using system for data acquisition.

• Measuring section
• Flow cross-section W x H: 292 x 292 mm - length: 420 mm.
• Wind velocity: 3,1...28 m/s.

• Power consumption: 2,55 kW.

• Force: 2x -5...5N.
• Pressure: 0...5 m bar.

• L x W x H: 2950 x 945 x 1645 mm.
• Weight: approx. 275 kg.