Air at at 300°K and 1 atm. flowing over a flat plate at 30 m/s, how thick is boundary layer at 2.5 cm from the leading edge of the plate? How much is the thickness at 5 cm? Calculate the mass flow through the boundary layer at a distance of 5 cm from the leading edge of the plate.
How much mass flows into the boundary layer in the region between 2.5 and 5 cm from the leading edge?
For what velocity of air should be so that boundary layer is exactly 0.000634?