Numerical approximation of Kerr-Debye equations
Idioma
en
Document de travail - Pré-publication
Resumen en inglés
We investigate finite volume schemes for the one-dimensional Kerr-Debye model of electromagnetic propagation in nonlinear media. In this relaxation quasilinear hyperbolic system, the relaxation parameter is the response ...Leer más >
We investigate finite volume schemes for the one-dimensional Kerr-Debye model of electromagnetic propagation in nonlinear media. In this relaxation quasilinear hyperbolic system, the relaxation parameter is the response time of the media. When it tends to zero, the relaxed limit is known as the Kerr system. We show that basic explicit splitting methods fail to preserve this asymptotic. Following two different viewpoints, we construct splitting implicit and well-balanced explicit approximations which are stable, entropic and own the correct asymptotic behavior. Various numerical experiments are performed.< Leer menos
Palabras clave en inglés
Finite volume methods
hyperbolic problems
asymptotic preserving schemes
relaxation
linearly degenerate
well-balanced
splitting
Orígen
Importado de HalCentros de investigación