Biomedical Engineering > GATE 2025 > Fluid Dynamics
A Newtonian fluid of viscosity μ is undergoing laminar flow in a tube of radius R. For a constant pressure drop per unit length along the tube, which of the following statement(s) is/are CORRECT?
Note: r represents the radial position; assume no slip condition at the boundaries.
A
The radial profile of the flow velocity is proportional to (1-r2/R2)
B
The radial profile of the flow velocity is proportional to (1-r3/R3)
C
Shear stress is zero at r=R
D
Shear stress is zero at r=0

Correct : a

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newtonian fluid laminar flow in tube GATE Biomedical Engineering 2025 biomedical engineering gate flow velocity radial profile shear stress tube no slip condition flow mechanics GATE 2025 Biomedical Engineering

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