Simulation of Shocked Acoustic Wave Using DRP Scheme

Abstract

Numerical simulation of a very small amplitude and high frequency sound wave superimposed on steady flow in a quasi-one dimensional convergent-divergent nozzle is performed using the optimized 7-point central DRP scheme with artificial damping terms. We use both the characteristic and radiation boundary conditions for the boundary treatment. This study contains two different cases; where is no shock in the nozzle, and in the second a normal shock is considered in the divergent section of the nozzle. The acoustic-shock wave interaction is considered.