Question

1. (15 pts.) The velocity potential of a subsonic compressible airflow in Cartesian coordinates is given by x, y) 1-м The freestream properties are given by V 214 m/s, po1 atm, andT is a perfect gas. At the location (x,y) = (0.06 m, 0.06 m), calculate a. the flow velocity. b. the pressure using the linear theory. 288 K. Assume air

Answer 1

,' Moo = 0.63 Co os, 0.06 1 63 X1-6-63 16 633 こ253 2.5 'm /s

0.632 レニ 0.055 x 0.7462-X 4.8チ95%(-1) ,s o.06 ,0.06)m 253 . 2 5) 2ナ( 2) 2 253 25ros New 06, 0.0 y) 2. r (253.2s 223 47k 28구 R.

0-8 5 14x283x 22.3 41 Ti 及쏟 0.993) atm) 2