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Question

The maximum velocity of one-dimensional incompressible fully developed viscous flow between two fixed parallel plates,is 6 ms1. The mean velocity (in ms1) of the flow is

A
2
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B
3
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C
4
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D
5
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Solution

The correct option is C 4
Umax=6 m/s

Since,

UmaxUmean=32

6Umean=32

Umean=4 m/s

Points To Remember
  • In case of flow between two fixed parallel plates.
UmaxUavg=32
  • In case of flow in the circular pipe,
UmaxUavg=2

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