Supplementary material from "Stability of combustion waves in a simplified gas–solid combustion model in porous media"
Posted on 2018-02-09 - 12:14
We study the stability of the combustion waves that occur in a simplified model for injection of air into a porous medium that initially contains some solid fuel. We determine the essential spectrum of the linearized system at a travelling wave. For certain waves, we are able to use a weight function to stabilize the essential spectrum. We perform a numerical computation of the Evans function to show that some of these waves have no unstable discrete spectrum. The system is partly parabolic, so the linearized operator is not sectorial, and the weight function decays at one end. We use an extension of a recent result about partly parabolic systems that are stabilized by such weight functions to show nonlinear stability.This article is part of the theme issue ‘Stability of nonlinear waves and patterns and related topics’.
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Ozbag, Fatih; Schecter, Stephen (2018). Supplementary material from "Stability of combustion waves in a simplified gas–solid combustion model in porous media". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.4001094.v1