Question

expansion angle. dhkdjfjsj sc jfjdjjfjgjfj ​

Answer 1

Answer:

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Answer 2

Answer:

What is expansion angle?

The physical interpretation of the Prandtl-Meyer function is that it is the angle through which you must expand a sonic (M=1) flow to obtain a given Mach number. The value of the Prandtl-Meyer function is therefore called the Prandtl-Meyer angle.