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CSS Solved Papers
Physics Chemistry

Engineering :: Fluid Mechanics and Hydraulic Machines


  Boundary layer thickness (?) is the distance from the surface of the solid body in the direction perpendicular to flow, where the velocity of fluid is equal to
[A]. Free stream velocity[B]. 0.9 times the free stream velocity
[C]. 0.99 times the free stream velocity[D]. None of the above

Answer: Option C


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