The 100-mm-diameter pipe is connected by a nozzle to a large reservoir of air that is at a temperature of 30 °C and absolute pressure of 600 kPa. The backpressure causes M₁ > 1, and the flow is choked at the exit, section 2, when L = 5 m. Assume a constant friction factor of 0.0085 throughout the pipe. Gas constant for air is R = 286.9 J/[kg - K] and its specific heat ratio is k=1.40. (Figure 1)

The 100-mm-diameter pipe is connected by a nozzle to a large reservoir of air that is at a temperature of 30 °C and absolute pressure of 600 kPa. The backpressure causes M₁ > 1, and the flow is choked at the exit, section 2, when L = 5 m. Assume a constant friction factor of 0.0085 throughout the pipe. Gas constant for air is R = 286.9 J/[kg - K] and its specific heat ratio is k=1.40. (Figure 1)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

The 100-mm-diameter pipe is connected by a nozzle to a large reservoir of air
that is at a temperature of 30 °C and absolute pressure of 600 kPa. The
backpressure causes M₁ > 1, and the flow is choked at the exit, section 2,
when L = 5 m. Assume a constant friction factor of 0.0085 throughout the pipe.
Gas constant for air is R = 286.9 J/[kg. K] and its specific heat ratio is
k = 1.40. (Figure 1)
Figure
100 mm
1
1 of 1
Part A
Determine the mass flow through the pipe.
Express your answer using three significant figures.
m = 7.013
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AΣo↓vec
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