Discussion
A convex corner turns a stream at \( M = 1.5 \) through \( 37.86 \) degrees. The Mach number downstream is nearest to
Answer: A
Adding to the upstream value, \( \nu_2 = 11.90 + 37.86 = 49.76 \) degrees, which is \( \nu(3) \), so the flow reaches Mach 3. Working the same problem in two stages, first to Mach 2 and then on to Mach 3, gives the same answer, which is a useful check on the additivity.
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