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

Discussion

Regular reflection of an oblique shock from a wall becomes impossible when

  • A.The wall is perfectly smooth
  • B.The upstream flow is supersonic
  • C.The required deflection exceeds the maximum for the downstream Mach number
  • D.The incident shock angle exceeds the Mach angle

Answer: C

The reflected shock has to turn a stream that the incident shock has already slowed, and if the deflection needed exceeds what that slower stream can achieve, no regular reflection exists. A Mach reflection then forms instead, with a normal shock stem standing on the wall and a triple point above it.

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

Post your comment

Please log in or register to post a comment.