For flow above a suddenly accelerated flat plate, the scaled velocity field u = u / is a solution of ou Ot 742 for t70 , 970 u = f ( y , t ; v ) at y=0 U -0 as y zoo dimensionless only parameter U =0 at t=0 ( a ) Find the similarity solution uly,t ) = f ( n ) , n= y ; obtain fly ) . ( b) At time t, how far above the plate does the velocity u become less than 1% of V , ie . U = u = f (q ) 5 0.01 2 You can think of that as The boundary layer thickness at time t