Question: Problem 2 (30 points): Air flows through a duct shown below. If the flow in section I has a Mach number, M-2, A-20 pts)

Problem 2 (30 points): Air flows through a duct shown below. If

Problem 2 (30 points): Air flows through a duct shown below. If the flow in section I has a Mach number, M-2, A-20 pts) Calculate the Mach numbers in sections 2, 3 and 4. B-10 pts) If static pressure in section 1 is, P1-5 atm, calculate the pressure, PA, in section 4. Hint: The waves shown in the duct are expansion waves. There are no compression (shock) waves. M=2 1 3 8 2 4

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