Question

Air at T 25C and p = 1 atm flows past a long flat plate, at the end of which is placed an arrow scoop, as shown in the figure

below. (a) Determine if the boundary layer is laminar or turbulent at the position of the scoop assuming Reztrans 5 x 10; (b) estimate the height hof the scoop if it is to extract 4 kg/s per meter of width b into the paper. (c) Find the drag on the plate per meter of width, D/b up to the inlet of the scoop.

Fig: 1

Fig: 2