Question

the Reynolds number for a fluid flow in a pipe is independent of​

Answer 1

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Explanation: The friction factor in laminar flow through pipes is given by the expression 64/Re which is independent of roughness. In fully turbulent flow through rough pipes friction factor is independent of Reynolds number and dependent on relative roughness. In smooth pipe it is dependent on Reynolds number. 2.

Answer 2

Explanation:

Laminar Flow in a Pipe

Laminar flow occurs when the calculated Reynolds number is less than 2300 and in this case the resistance to flow is independent of the pipe wall roughness.