Question

6) (1 Opts) The pipe shown in the figure transports air at a temperature of 20 degrees C having an absolute pressure of 30kPa and a speed of 550m/s measured just behind a standing shock wave. Determine the temperatur pressure, and speed of the air just in front of the shock e, wave. 550 m/s V Вас P130 kPa 1 20°C

Answer 1

2 e havegive P- 30 KPa al culae a C 55 o YRT .4 x987x93 kg K fo Nㅲmal shock wave we have fYmula ろ。 84.6-301.4. So - 92 1. 32. - 3.584 1 U2 270.71 M

Using Te뺘eka,eklation for Nornd shockwave SM .4 &63 9.4) 1.2 2 so, Mach NoDonstee arn M2d YRT2 270.71 0。67 .4x87X406.67 He竺. Ļ.nally we can wki k af sechon 2 P, 84.6 KPa T2= 06.67 K= 133.670 0.67
Note:- Use Normal shock wave relationships for calculations of pressure, temperature & Mach no in upstream and downstream of normal shock wave