Interaction of a Shock Wave with a Contact Discontinuity for Local Heat Release in a Flow

Introduction

It is known [1] that the interaction between shock waves and a discontinuity surface is poorly studied, in particular, in the presence of a local unsteady heat release in the flow. Increased interest in the propagation of shock waves in a moving medium is caused by the problems arising when studying supersonic burning in gas and optical discharges and the generation of control efforts on a flowed around surface with the organization of a heat release zone above it. An unsteady contact surface can exist, for example, in the wake of a pulse-periodic optical discharge. It is possible to single out the line recently developed and related to the possibility of attenuating a shock wave after the passage of the thermal layer formed by a pulse-periodic energy source [2, 3, 4, 5]. When the incident shock wave interacts with a contact discontinuity surface, transmitted and reflected disturbances arise.