Mechanical Engineering > GATE 2025 > Pipe Flow
For a fully-developed pipe flow, which of the following options is/are correct?
A
For the same maximum velocity, the average velocity is higher in the turbulent regime than that of the laminar regime
B
Compressibility effects are important if Mach number is less than 0.3
C
For laminar flow, the friction factor is independent of surface roughness
D
For laminar flow, friction factor decreases with decrease in Reynolds number

Correct : a

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Related Topics

pipe flow mechanics fully developed pipe flow GATE mechanical engineering 2025 compressibility effects laminar flow friction factor turbulent regime velocity Reynolds number Mach number friction factor surface roughness GATE 2025 Q44

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