The unsteady boundary layer solution based on the edge velocity values gives us the skin friction distribution for a body. Obtain the upper and lower boundary layer edge velocity expressions for a thin airfoil plunging with \(h=-0.2 \cos (1.5 s)\). Using the edge velocity expression, obtain the time dependent surface vorticity values with Eqs. 8.5-8.7.

Eq 8.5

Eq 8.6

Eq 8.7

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t -(V - V) + v- Jn