Consider a mach 4 airflow at a pressure of 1 atm. We wish to slow this flow
Question:
Consider a mach 4 airflow at a pressure of 1 atm. We wish to slow this flow to subsonic speed through a system of shock waves with as small a loss in total pressure as possible. Compare the loss in total pressure for the following three shock systems:
(a) A single normal shock wave
(b) An oblique shock with a deflection angle of 25.3°, followed by a normal shock
(c) An oblique shock with a deflection angle of 25.3°, followed by a second oblique shock of deflection angle of 20°, followed by a normal shock
From the results of (a), (b), and (c), what can you induce about the efficiency of the various shock systems?
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a From Table A1 for M Hence M go P01 foz PO1 P1 P1 4 2 From Table A2 for My P1 1518 1 atm 1578 atm P...View the full answer
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