2.25: Advanced Fluid Dynamics
Back to 2.25 Home | Back to Section 5
 Problem 5.11: Air Cushion Vehicle


Back
Use a control volume in the shape of a hemisphere with radius r>R, centered at the axis of the craft just above the ground, with a bottom surface just above the ground. Show that the momentum flow rate through the hemispherical part is negligibly small compared with the pressure force on the CV. (See also Problem 5.10!)