Numerical boundary conditions for the simulation of rarefied flows along solid boundaries
Luc Mieussens
University of Bordeaux France
Co-Author(s): C. Baranger, N. Herouard, J. Mathiaud, L. Mieussens
Abstract:
We present a numerical comparison between two standard finite volume schemes and a discontinuous Galerkin method applied to the BGK equation of rarefied gas dynamics. We pay a particular attention to the numerical boundary conditions in order to preserve the rate of convergence of the method. Most of our analysis relies on a 1D problem (Couette flow), but we also present some results for a 2D aerodynamical flow.