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

Discussion

The critical or Crocco point on a shock polar marks the deflection at which

  • A.The downstream flow is exactly sonic
  • B.The shock becomes a Mach wave
  • C.The shock detaches from the body
  • D.The entropy rise is zero

Answer: A

The sonic point sits very slightly below the maximum deflection on the polar. Between the two the flow is subsonic downstream even on the weak branch, which is a narrow but real range. Detachment corresponds to the maximum deflection itself, a distinct point a little further round the curve.

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

Post your comment

Please log in or register to post a comment.