Nonuniformities of the medium, through which a body moves at supersonic speed, can produce considerable changes in the shape and structure of the leading shock wave. The motion of a sphere through a plane nonuniformity was studied in various aerodynamic formulations in (1-8). In (1-3) the problem of the penetration of blunt axisymmetric bodies (sphere-cone, sphere, and cylinder end-face) into gases with different aerodynamic properties was investigated using the Euler equations (the interaction with the shock wave was simulated). The flow in the vicinity of the stagnation streamline was considered in (4), with chemical relaxation behind the shock wave taken into account.
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