Question

A jet has to fly at speed of 400 m/s at a height of 10000 m above sea level (T = – 45 C and P = 0.2981 atm). For testing in a pressurized wind tunnel at 15 C, A 1:20 model is designed. For complete dynamic similarity what pressure and velocity be used in the tunnel? Take 3 2 , ( 117) T T    Es = p, p = RT, T is in K and  is ratio of sp. heats

Answer 1

Answer:

Do the maths by your own