# Consider subsonic airflow through a 20-cmdiameter adiabatic duct with inlet conditions of T 1 = 330 K, P 1 =

## Question:

Consider subsonic airflow through a 20-cmdiameter adiabatic duct with inlet conditions of T_{1} = 330 K, P_{1} = 180 kPa, and Ma_{1} = 0.1. Taking the average friction factor to be 0.02, determine the duct length required to accelerate the flow to a Mach number of unity. Also, calculate the duct length at Mach number intervals of 0.1, and plot the duct length against the Mach number for 0.1 ≤ Ma ≤ 1. Discuss the results.

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**Related Book For**

## Fluid Mechanics Fundamentals And Applications

**ISBN:** 9780073380322

3rd Edition

**Authors:** Yunus Cengel, John Cimbala

**Question Details**

Chapter #

**12**- COMPRESSIBLE FLOWSection: Problems

Problem: 111

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