GATE ME 2014 Set 1 — Question 54
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Fluid Mechanics → Viscous & Pipe Flow → Darcy-Weisbach & Moody Diagram
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Question
For a fully developed flow of water in a pipe having diameter , velocity and kinematic viscosity , the value of Darcy friction factor is _______
Correct answer
0.06 to 0.07
Solution
Given:
Diameter,
Velocity,
Kinematic viscosity, First, calculate the Reynolds number ():
Since , the flow is laminar.
For fully developed laminar flow in a pipe, the Darcy friction factor () is given by:
Diameter,
Velocity,
Kinematic viscosity, First, calculate the Reynolds number ():
Since , the flow is laminar.
For fully developed laminar flow in a pipe, the Darcy friction factor () is given by:
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