Machine-translated by Google. Questions are authored in English.
Top

Discussion

Von Karman's momentum integral equation relates the growth of momentum thickness to

  • A.The Mach number of the free stream
  • B.The surface roughness height
  • C.The wall shear and the pressure gradient
  • D.The displacement thickness alone

Answer: C

The integral form collapses the boundary-layer equations into a single ordinary differential equation for the momentum thickness, driven by the wall shear and the pressure gradient. It is the basis of every quick engineering boundary-layer estimate and needs no assumption about the profile shape until one is chosen.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.