Design and Development of Jet Flow Setup to Determine Flow Velocity and To Visualize Flow Pattern at Nozzle Exit

Aerodynamicists use the windtunnels to test the scaled models of an Aircraft, components and other vehicles placed inside the test section of it. The flow properties, Lift and drag forces over the model can be studied. An experimental jet flow setup which is similar to a low speed open circuit wind tunnel has been designed and fabricated using mil steel material. This setup is capable of producing the flow using the exhaust fan which is placed at entry portion of it. This setup was made by keeping in mind that, the educators, students and aerodynamicists to to visualize the flow pattern and to determine the flow properties over the model placed in the test section. The laminar flow can be achieved at the downstream end of nozzleand it is passed in to the test section. In this paper, the exit velocity of the nozzle for varying rpm was determined and plotted. Also, the vortex formation inside test section can be easily visualized by passing the LASER light source.