Aerospace Engineering > GATE 2026 > Prandtl-Meyer Expansion
Consider a centered Prandtl-Meyer expansion fan at a θ = 4° corner in a Mach 1.78 air flow, as shown in the figure below. The angle ψ (see figure) made by the ending wave of the fan with respect to the incoming stream is ________ degrees (rounded off to 1 decimal place).
An excerpt from the table of Prandtl-Meyer function for air is provided below.
An excerpt from the table of Prandtl-Meyer function for air is provided below.
Correct : 28.9
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