A wind tunnel used in the fluid mechanics laboratory has a test section with a 40 cm x 40 cm cross section and is 60 cm in length. The test section inlet velocity is uniform and with a velocity of 10 m/s. Assuming that the wall boundary layer has zero thickness at the test section inlet, by how much will the centerline air speed change by the end of the test section?

Answer rating: 100% (QA)

Boundary layer grows along the walls of the test section ... View the full answer