Reynolds number can be represented as the ratio of:
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A.
Inertia force to Viscous force
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B.
Viscous force to Buoyancy force
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C.
Viscous force to Inertia force
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D.
Buoyancy force to Viscous force
Correct Answer:
A. Inertia force to Viscous force
Explanation:
The Reynolds number is a dimensionless quantity in fluid mechanics used to predict whether a fluid flow is laminar or turbulent. It is defined as the ratio of inertia forces to viscous forces. Inertia forces relate to the momentum of the fluid and its tendency to continue moving, while viscous forces represent the internal friction or "stickiness" that resists flow. When inertia forces dominate, the flow becomes chaotic and turbulent; when viscous forces are stronger, the flow remains smooth and laminar.
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