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Air enters a nozzle steadily at 2.21 kg/m3 and 45 m/s; and

Fluid Mechanics | 2nd Edition | ISBN: 9780071284219 | Authors: Yunus A. Cengel, John M. Cimbala ISBN: 9780071284219 39

Solution for problem 12P Chapter 5

Fluid Mechanics | 2nd Edition

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Fluid Mechanics | 2nd Edition | ISBN: 9780071284219 | Authors: Yunus A. Cengel, John M. Cimbala

Fluid Mechanics | 2nd Edition

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Problem 12P

Air enters a nozzle steadily at 2.21 kg/m3 and 45 m/s; and leaves at 0.762 kg/m3 and 150 m/s. If the inlet area of the nozzle is 80 cm2, determine(a)the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

Step-by-Step Solution:

Solution

Introduction

A nozzle in which air enters with a velocity 2.21 m/s and leaves with a velocity 0.762 m/s the inlet area of the nozzle is 80 cm2. Is shown in figure.

Step 1

The density of the air at the inlet = 2.21 kg/m3

The density of the air at the outlet =0.762 kg/m3

        The area of the nozzle at inlet A1 =80 cm2 =0.008 m2

        Velocity of air at the inlet v1=45 m/s

Step 2 of 3

Chapter 5, Problem 12P is Solved
Step 3 of 3

Textbook: Fluid Mechanics
Edition: 2
Author: Yunus A. Cengel, John M. Cimbala
ISBN: 9780071284219

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Air enters a nozzle steadily at 2.21 kg/m3 and 45 m/s; and