Asymptotic Analysis in a Gas-Solid Combustion Model with Pattern Formation

preprint2012arXivOpen access

Abstract

We consider a free interface problem which stems from a solid-gas model in combustion with pattern formation. We derive a third-order, fully nonlinear, self-consistent equation for the flame front. Asymptotic methods reveal that the interface approaches a solution of the Kuramoto-Sivashinsky equation. Numerical results are presented which illustrate the dynamics.

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