In turbulent flow, the__________________?
Correct answer: D. Shear stresses are generally larger than in a similar laminar flow
- A. Fluid particles move in an orderly manner
- B. Momentum transfer is on molecular scale only
- C. Shear stress is caused more effectively by cohesion than momentum transfer
- D. Shear stresses are generally larger than in a similar laminar flow
Explanation
Turbulent eddies transport momentum across layers in addition to molecular action, producing greater effective momentum transfer and generally higher shear stress than comparable laminar flow. The other options describe laminar or incorrect behaviour.
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