WIND TUNNEL has been developed to perform various experiments of aerodynamics and fluid flow. An open circuit Wind Tunnel consists of a region of uniform air flow into which different models can be fitted. The wind tunnel has bell mouth shaped entry to guide the air smoothly into test section. Air entry of wind tunnel has one honey comb grid and nylon mesh screens which stabilizes the air flow. Test section with transparent acrylic sheet, is provided for visual observation. Diverging section of the wind tunnel acts like a diffuser reducing the dynamic pressure of air at the exit. An axial fan coupled with variable speed AC motor is used to attain desired wind velocity. A Variable Frequency Drive motor control is used for testing various aerodynamic models at various air velocities. A computerized version of wind tunnel is also available. Various graphs can be plotted by interfacing the equipment via National Instruments Labview based software. Data logging in MS Excel feature is also provided in software.
EXPERIMENTS
To plot speed curve for wind tunnel.
To study pressure distribution around (A) aerofoil-symmetrical & un-symmetrical (B) Cylinder (C) Flat Plate.
To measure lift and drag on aerofoil model.
To study the development of boundary layer along a plate in Tunnel
