The Numerical Simulation of Radiative Shocks. I. The Elimination of Numerical Shock Instabilities Using a Local Oscillation Filter

Sutherland, Ralph; Bisset, David; Bicknell, Geoffrey

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The Numerical Simulation of Radiative Shocks. I. The Elimination of Numerical Shock Instabilities Using a Local Oscillation Filter

Date

2003

Authors

Sutherland, Ralph

Bisset, David

Bicknell, Geoffrey

Publisher

IOP Publishing

Abstract

We address a numerical instability that arises in the directionally split computation of hydrodynamic flows when shock fronts are parallel to a grid plane. Transverse oscillations in pressure, density, and temperature are produced that are exacerbated by