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The Interaction of Prandtl-Meyer Wave with the Oblique Shock of the Same Direction




Author(s)

Vladimir Uskov and Mikhail Chernyshov

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DOI:10.17265/1934-8975/2014.01.015

The interaction of the oblique stationary shock with the preceding Prandtl-Meyer expansion or compression wave is studied theoretically and numerically. Two analytical models are proposed for the flow description, which, though being approximate, gives us the solution of the problem with very high accuracy level. Owing to proposed analytical models, distinctive features of the flow in the interaction region, curvilinear shock inflection, the reflected expansion/compression wave type change, the degeneration of the resulted waves (for example, of the oblique shock into weak discontinuity), occurrence of the subsonic pockets downstream the interacting shock, are discovered and characterized analytically.

Supersonic flow, shock-expansion interaction, analytical models and solutions