Fundamentals of Momentum, Heat, and Mass Transfer
Fundamentals of Momentum, Heat, and Mass Transfer
6th Edition
ISBN: 9781118947463
Author: James Welty, Gregory L. Rorrer, David G. Foster
Publisher: WILEY
Question
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Chapter 7, Problem 7.1P

(a)

Interpretation Introduction

Interpretation:

The fluid element deformation is to be sketched when vxy is much larger than vyx .

Concept Introduction:

Fluid element deformation occurs when the element changes its position with respect to its previous position. There are different types of deformation depending upon the aspect of change. These can be translation, rotation, angular, and volumetric deformations.

(a)

Expert Solution
Check Mark

Answer to Problem 7.1P

The fluid element deformation when 1y vxy is much larger than 13 vyx is sketched as:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  1

Explanation of Solution

Take a fluid element and plot it on a graph along x and y axis as shown below:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  2

For a large change in vxy as compared to vyx , the fluid element shown in the above figure deforms over the x axis and remains unaltered over the y axis. Therefore, the deformation is sketched as:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  3

(b)

Interpretation Introduction

Interpretation:

The fluid element deformation is to be sketched when vyx is much larger than vxy .

Concept Introduction:

Fluid element deformation occurs when the element changes its position with respect to its previous position. There are different types of deformation depending upon the aspect of change. These can be translation, rotation, angular, and volumetric deformations.

(b)

Expert Solution
Check Mark

Answer to Problem 7.1P

The fluid element deformation when vyx is much larger than vxy is sketched as:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  4

Explanation of Solution

Take a fluid element and plot it on a graph along x and y axis as shown below:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  5

For a large change in vyx as compared to vxy , the fluid element shown in the above figure deforms over the y axis and remains unaltered over the x axis. Therefore, the deformation is sketched as:

  Fundamentals of Momentum, Heat, and Mass Transfer, Chapter 7, Problem 7.1P , additional homework tip  6

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