Behaviour of a weak discontinuity in a thermally conducting gas

Abstract

The paper deals with the investigation of thermal effects on the evolution of weak discontinuities and their contributions in the formation of shock waves. The growth and decay behaviour of weak discontinuities has been discussed by taking into account the influence of thermal conduction. The critical stage of shock formation as a result of breakdown has been determined. It is found that the thermal conduction has a destabilizing effect on the propagation of weak discontinuities. Special cases of interest are also discussed to explore the possibilities of the shock formation. © 1985 Società Italiana di Fisica.