INTRO.TO CHEM.ENGR.THERMO.-EBOOK>I<
INTRO.TO CHEM.ENGR.THERMO.-EBOOK>I<
8th Edition
ISBN: 9781260940961
Author: SMITH
Publisher: INTER MCG
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Chapter 7, Problem 7.8P
Interpretation Introduction

Interpretation:

The equation of throat velocity should be derived for converging/diverging nozzle when an ideal gas with constant heat capacities enters into it and expands isentropically.

Concept introduction:

A converging/diverging nozzle is a decreasing and increasing area nozzle that starts with a big cross- sectional area and decreases with the length of the nozzle till throat and then increases again. Due to mass conservation fluid enters from the smaller cross-section has to speed up till throat, then decreases as the area increases, which shows us that the velocity is maximum in the throat due to a smaller cross-section.

INTRO.TO CHEM.ENGR.THERMO.-EBOOK>I<, Chapter 7, Problem 7.8P

Fig. Converging/Diverging nozzle

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