A simple parameter-free entropy correction for approximate Riemann solvers
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چکیده
We present here a simple and general non-parametrized entropy-fix for the computation of fluid flows involving sonic points in rarefaction waves. It enables to improve the stability and the accuracy of approximate Riemann solvers. It is also applied to MHD flows. To cite this article: Author, C. R. Mecanique xxx (2009). Résumé Une correction entropique non paramétrique simple pour les solveurs de Riemann approchés On présente dans cette note une correction entropique non paramétrique simple et générale pour la simulation d’écoulements de fluides comportant des points soniques en zone de détente. Celle-ci permet d’accroı̂tre la stabilité et la précision de solveurs de Riemann approchés. Cette correction est aussi appliquée aux équations de la MHD idéale. Pour citer cet article : Auteur, C. R. Mecanique xxx (2009).
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تاریخ انتشار 2010