The friction factor for turbulent flow in a hydraulically smooth pipe______________?

Correct answer: A. Depends only on Reynolds number

  • A. Depends only on Reynolds number
  • B. Does not depend on Reynolds number
  • C. Depends on the roughness
  • D. None of these

Explanation

In a hydraulically smooth pipe, roughness does not affect the friction factor because it is submerged within the viscous sublayer. The friction factor therefore depends primarily on Reynolds number.

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