The ratio of the inertia and viscous forces acting in any flow, ignoring other forces is called as-
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A.
Froude number
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B.
Reynold number
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C.
Weber number
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D.
Euler number
Correct Answer:
B. Reynold number
Explanation:
The Reynolds number is a dimensionless value used in fluid mechanics to represent the ratio of inertial forces to viscous forces within a moving fluid. It helps determine whether a fluid flow is laminar or turbulent by measuring the relative importance of these two effects under specific flow conditions. When inertial forces dominate, the flow tends to be turbulent, whereas dominance by viscous forces typically results in laminar flow.
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