Suppose that the velocity profile in a laminar flat-plate boundary layer, with constant flow ve- locity U, is approximated by for y <6(x), u(x,

Suppose that the velocity profile in a laminar flat-plate boundary layer, with constant flow ve- locity U, is approximated by for y 8(x). (a) Calculate the displacement thickness momentum thickness and the wall shear stress 8-(-) dy. e-(-)dy. Ju Tw ay (b) Use the momentum integral equation, de U2 dx dU +(20+8) U Tw dx == to determine the "boundary layer thickness" 8(x) and local friction factor cf(x) = 2Tw/(pU) for uniform flow over a flat plate.