The velocity profile inside the boundary layer for flow over a flat plate is given as \frac{u}{u_{\infty}} = \sin ⁡ (\frac{\pi }{2}\frac{y}{\delta }) ,Where U ∞ is the free stream velocity, δ is the local boundary layer thickness. If δ* is the local displacement thickness, the value of \frac{\delta ^{ ∗ }}{\delta } is

GATE Mechanical Engineering (ME) 2017 Shift 1 Solved Paper

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The velocity profile inside the boundary layer for flow over a flat plate is given as

\;{u}/{u_{∞}} = sin \;⁡ (\;{π\;}/{2}\;{y}/{δ\;}) ,

Where U_∞ is the free stream velocity, δ is the local boundary layer thickness. If δ* is the local displacement thickness, the value of $\;{δ\;^{\;∗\;}}/{δ\;}$ is

$\;{2}/{π\;}$
$1−\;{2}/{π\;}$
$1 + \;{2}/{π\;}$
0

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