The document Viscous Flow of incompressible Fluid Civil Engineering (CE) Notes | EduRev is a part of the Civil Engineering (CE) Course Topic wise GATE Past Year Papers for Civil Engineering.

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**Question 1. A solid sphere of radius, r and made of material with density, p _{s} is moving through the atmosphere (constant pressure, p) with a velocity, v. The net force ONLY due to atmospheric pressure (F_{p}) acting on the sphere at any time t, is [2019 : 1 Mark, Set-ll]**

(a) 4Ï€r^{2}p

(b)

(c) Ï€r^{2}p

(d) zero

Velocity distribution equation for Couette flow

Solution:

In this equation, the y = 0 axis lies equidistant between the plates at a distance h/2 from the two plates, p is the pressure variable and n is the dynamic viscosity term. The maximum and average velocities are, respectively [2014 : 2 Marks, Set-II]

Answer:

Solution:

Velocity expression for a laminar flow between two parallel plates is,

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