# HOP

## Seminar

### A Mach-uniform algorithm based on regularised fluid equations

Seminar Room 1, Newton Institute

#### Abstract

A Mach-uniform algorithm is an algorithm suitable for simulations at any level of the Mach number. Semi-implicit time discretization methods and pressure correction algorithms are among the popular choices to obtain Mach-uniform algorithms with applications to meteorology and combustion simulations. Here we suggest an alternative (although related) approach based on a regularized pressure formulation of the Euler equations. The equations are integrated in time by a staggered time-stepping method which avoids artificial numerical damping of large scale accoustic waves. The regularization is motivated by a simple spatial multi-scale analysis.

**Related Links**

- http://users.math.uni-potsdam.de/~sreich/ - home page