Aerospace Engineering > GATE 2015 > Boundary Layer Theory
The Reynolds number, Re is defined as UαL/ν where L is the length scale for a flow, Uα is its reference velocity and ν is the coefficient of kinematic viscosity. In the laminar boundary layer approximation, comparison of the dimensions of the convection term and the viscous term u ∂u/∂x ν∂2u/∂x2 leads to the following relation between the boundary layer thickness δ and Re:
A
δ∝√Re
B
δ=1/√Re
C
δ∝Re
D
δ∝1/Re

Correct : b

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