Volume 36, Issue 5 pp. 1098-1128
RESEARCH ARTICLE

An asymptotic preserving scheme on staggered grids for the barotropic Euler system in low Mach regimes

Thierry Goudon

Thierry Goudon

Université Côte d'Azur, Inria, CNRS, LJAD, France

Search for more papers by this author
Julie Llobell

Julie Llobell

Université Côte d'Azur, CNRS, Inria, LJAD, France

Search for more papers by this author
Sebastian Minjeaud

Corresponding Author

Sebastian Minjeaud

Université Côte d'Azur, CNRS, Inria, LJAD, France

Correspondence

Sebastian Minjeaud, Université Côte d'Azur, CNRS, Inria, LJAD, France.

Email: [email protected]

Search for more papers by this author
First published: 23 January 2020
Citations: 5

Abstract

We present a new scheme for the simulation of the barotropic Euler equation in low Mach regimes. The method uses two main ingredients. First, the system is treated with a suitable time splitting strategy, directly inspired from the previous study that separates low and fast waves. Second, we adapt a numerical scheme where the discrete densities and velocities are stored on staggered grids, in the spirit of MAC methods, and with numerical fluxes derived from the kinetic approach. We bring out the main properties of the scheme in terms of consistency, stability, and asymptotic behavior, and we present a series of numerical experiments to validate the method.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.