1. Consider a person walking first in air and then in water at the same speed. For which motionwill the Reynolds number be higher? f0.10.090.080.070.060.050.040.030.0250.020.0150.010.0090.008Laminarflow10³11---Transition range2(10³) 468104Moody ChartWholly turbulent flowSmooth2(104) 4 6 81052(105) 4 68Re=pVDμ1062(106) 4 6 81072(107) 4 6 80.050.040.030.020.0150.010.0080.0060.004 D0.0020.0010.00080.00060.00040.00020.00010.000050.00001

Given data:- Person walking in air and water medium To find:- Reynold number for which medium will…

Answered: 1. Consider a person walking first in…

1. Consider a person walking first in air and then in water at the same speed. For which motion will the Reynolds number be higher?

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

1. Consider a person walking first in air and then in water at the same speed. For which motion
will the Reynolds number be higher?

f
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.025
0.02
0.015
0.01
0.009
0.008
Laminar
flow
10³
1
1
---
Transition range
2(10³) 468
104
Moody Chart
Wholly turbulent flow
Smooth
2(104) 4 6 8
105
2(105) 4 68
Re=
pVD
μ
106
2(106) 4 6 8
107
2(107) 4 6 8
0.05
0.04
0.03
0.02
0.015
0.01
0.008
0.006
0.004 D
0.002
0.001
0.0008
0.0006
0.0004
0.0002
0.0001
0.00005
0.00001

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