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A blunt-nosed body in supersonic flight always carries

  • A.A detached, curved bow shock
  • B.An attached oblique shock at the nose
  • C.No shock at all
  • D.A normal shock lying along the whole body

Answer: A

A blunt nose demands an infinite deflection at the stagnation streamline, far beyond any attached solution, so the shock must stand off. This is not merely tolerated but sought after in re-entry design, because the detached shock keeps the hottest gas away from the surface and eases the heating problem.

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