In a fully turbulent flow (Re > 105) in a pipe of diameter 'd', for a constant pressure gradient, the dependence of volumetric flow rate of an incompressible fluid is_______________?
Correct answer: C. d2.5
- A. d
- B. d2
- C. d2.5
- D. d4
Explanation
In fully turbulent flow, the friction factor is treated as approximately independent of Reynolds number. Since a fixed pressure gradient gives V proportional to d^0.5, Q = AV is proportional to d^2.5.
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