Criteria of Existence of Nonviscous Vortical Structures in Shock Layers of Supersonic Conical Gas Flows

摘要

The results of complex theoretical and experimental investigations of symmetric and asymmetric flows past V-shaped wings with supersonic forward edges are described. The criteria of initiation of vortical features of a nonviscous origin in the shock layer were established. To these features, we refer the intensity of contact discontinuities generated by the branching points of shock waves and the Mach number of the velocity component of unperturbed flow normal to the conical beam passing through the corresponding branching point. With use of the proposed criteria, the existence of wing-flow regimes with an "explosive" character of increasing bridgelike shock in the Mach configurations of shock waves during the transition from regular to Mach interaction of shocks attached to the forward wing edges with increasing angle of attack is shown.