General Studies · Fluid Mechanics
If k is the average height of irregularities and δ is the thickness of the laminar sub-layer, then the boundary is known to be hydrodynamically rough when _______.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1kδ > 6✓
- 2kδ < 0.25
- 30.25 ≤ kδ ≤ 6
- 4kδ ≤ 0.25
Correct answer
kδ > 6
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