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If a supersonic flow (\(M=2.0\)) encounters a convex corner (expansion), what happens to the stagnation pressure?

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Across a Prandtl--Meyer expansion, \[ \boxed{ \begin{aligned} M &\uparrow P &\downarrow T &\downarrow P_0 &=\text{Constant} \end{aligned} } \] because the expansion process is isentropic.

Updated On: Jul 14, 2026

It increases because the flow speeds up
It decreases because of the expansion fan
It remains constant because the process is isentropic
It drops to zero

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The Correct Option is C

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If a supersonic flow (\(M=2.0\)) encounters a convex corner (expansion), what happens to the stagnation pressure?

Show Hint

The Correct Option is C

Solution and Explanation

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