Abstract Based on the mathematical model of unsteady Reynolds equations (URANS), numerical simulation of a supersonic (M = 3) flow around a tandem of finite span wings is carried out. The interaction of the tip of the vortex from the front wing, mounted at an angle of 10 degrees, with the surface of the second wing located downstream, is studied. It is shown that several secondary vortices with different directions of rotation are formed in this interaction. Modern methods of identifying and visualizing vortex structures based on the Liutex criterion are used.
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