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- W3012764471 abstract "A simple conceptual description of condensed-phase combustion, explosive solidification, and certain other exothermic phenomena can be given via a free-boundary model with a nonlinear kinetic condition at the free boundary. For a wide range of parametric regimes, the reaction front exhibits a great variety of spatial patterns and instabilities. In [1], we did a linear stability analysis of interfaces that move along a two-dimensional semi-infinite strip with thermally insulated edges. Here we use the normal-mode method to perform a weakly nonlinear analysis for the development of transverse instabilities in the strip. The asymptotic analysis leads to the derivation of ordinary differential equations of Landau-Stuart type for the slowly varying amplitudes of linearly unstable modes. We focus on a strip in which two eigenmodes lose stability at the same value of a parameter related to the activation energy. Such a case gives rise to nontrivial couplings between the amplitude equations, and the two unstable modes compete for dominance. Based on the bifurcation analysis of the amplitude equations, we classify the front configurations that will emerge for any given choice of the kinetics parameter." @default.
- W3012764471 created "2020-03-27" @default.
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- W3012764471 date "1997-01-01" @default.
- W3012764471 modified "2023-09-26" @default.
- W3012764471 title "Weakly nonlinear dynamics of interface propagation" @default.
- W3012764471 hasPublicationYear "1997" @default.
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