Question: Helium (Table A.4) enters a 5-cm-diameter pipe at p1 = 550 kPa, V1 = 312 m/s, and T1 = 40C. The friction factor is 0.025.

Helium (Table A.4) enters a 5-cm-diameter pipe at p1 = 550 kPa, V1 = 312 m/s, and T1 = 40°C. The friction factor is 0.025. If the flow is choked, determine
(a) The length of the duct and
(b) The exit pressure.

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For helium take k 166 and R 2077 Jkg K We have no tables for k 166 h... View full answer

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