Question

opJD,d,p,,).determine the appropriate pi terms The drag on an airplane cruising at 240 mph in air at 1 atm and 300 K is to be determined from tests on a 1:10 scale model in a pressurized wind tunnel. Let the geometry of the prototype be represented by I.The fluid viscosity is u. The prototype drag is D. 4. To have the fluid compressibility between the model and the prototype, what must the velocity of the wind tunnel air be if the temperature of the wind tunnel air is 300 K Determine the required air pressure of the tunnel What will the drag on the prototype be if the drag on the wind tunnel model is measured to be 1 lb. a. b. c.

Answer 1