Shock enhancement of a turbulent flow

Presented here are calculations describing the enhancement of turbulence caused by the passing of a shock wave. This field is of interest to those investigating the Richtmyer-Meshkov instability, supersonic combustion, fusion and many others. Experiments involving shocks and turbulence (Sturtevant, et. al. 1980, Smits and Muck 1987, Trolier and Duffy 1984) show that the turbulence level following a shock wave can be as much as 3 times higher then that before the shock. Predictions from linear theory (McKenzie and Westphal 1968 and Anyiwo and Bushnell 1982) show very similar shock enhancements. Recent calculations involving nonlinear effects (Kumar et. al. 1987 and Viecelli 1988) show promise in explaining how this enhancement is obtained. This study will use a shock tube type calculation domain to investigate the effect of a shock wave on pre-existing turbulence