Turbulent flow generally occurs for cases involving__________________?
Correct answer: D. None of these
- A. Highly viscous fluid
- B. Very narrow passages
- C. Very slow motion
- D. None of these
Explanation
Turbulence is promoted by high Reynolds number, usually through high velocity, large characteristic length, or low viscosity. Highly viscous fluids, narrow passages, and very slow motion generally favour laminar flow, so none of the listed cases applies.
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