Question

A brick-shaped object that is 10 cm in transverse height and 50 cm in streamwise length flies through a flow of air. The flow separates at the back edge, so the entire back side is the wake. The pressure in the wake is measured at 0.9 atm. Assume stagnation exists across entire front face. Assume unit width and a free stream velocity of 10 m s−1 . Determine the pressure drag and the shear drag. What would the drag coefficient be?

Answer 1