Uniform Stability of a Finite Difference Scheme for Transport Equations in Diffusive Regimes

Autor: Axel Klar, Andreas Unterreiter
Rok vydání: 2002
Předmět:
Zdroj: SIAM Journal on Numerical Analysis. 40:891-913
ISSN: 1095-7170
0036-1429
DOI: 10.1137/s0036142900375700
Popis: An asymptotic preserving numerical scheme (with respect to diffusion scalings) for a linear transport equation is investigated. The scheme is adopted from a class of schemes developed in [S. Jin, L. Pareschi, and G. Toscani, SIAM J. Numer. Anal., 38 (2000), pp. 913--936] and [A. Klar, SIAM J. Numer. Anal., 35 (1998), pp. 1073--1094]. Stability is proven uniformly in the mean free path under a CFL-type condition turning into a parabolic CFL condition in the diffusion limit.
Databáze: OpenAIRE