Concept explainers
The magnitude of the shear strain rate about point
Explanation of Solution
The shear strain rate is half of the rate of decrease of the angle between two perpendicular lines which intersect at the point. Initially at time
The following figure shows the fluid element at time
Figure-(1)
At time
Refer to Figure-(I), to obtain the values of the horizontal distance between point
Write the expression for the angle
The distance
Write the expression for the angle
The distance
Write the expression for the angle
Refer to figure (I), to obtain the value of
Substitute
Write the expression for the shear strain rate.
Substitute
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Chapter 4 Solutions
Fluid Mechanics: Fundamentals and Applications
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