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The velocity distribution for laminar flow between two fixed parallel plates:

This question was previously asked in
UKPSC JE Civil 8 May 2022 Official Paper-II
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  1. is constant over the cross section
  2. is zero at the plates and increases linearly to the mid plane
  3. varies parabolically across the section
  4. None of the above

Answer (Detailed Solution Below)

Option 3 : varies parabolically across the section
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Detailed Solution

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872

Velocity distribution profile equation is written as:

\(u = \frac{{ - 1}}{{2\mu }}\left( {\frac{{\partial p}}{{\partial x}}} \right)\left( {Hy - {y^2}} \right)\)

It is a parabolic equation, So the velocity distribution is parabolic.

SSC JE MEchanical 2 10

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