Coupled nonlocal complex Ginzburg-Landau equations in gasless combustion

Bernard J Matkowsky*, Vladimir Volpert

*Corresponding author for this work

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

We consider the evolution of a gasless combustion front. We derive coupled complex Ginzburg-Landau type equations for the amplitudes of waves along the front as functions of slow temporal and spatial variables. The equations are written in characteristic variables and involve averaged terms which reflect the fact that in the slowest time scale, the effect on one wave, of a second wave traveling with the group velocity in the opposite direction on the intermediate time scale, enters only through its average. Solutions of the amplitude equations in the form of traveling, standing, and quasiperiodic waves are found, and regions of stability for these solutions are determined. In particular we find that the traveling and quasiperiodic (including standing) waves are not stable simultaneously. Finally, we observe that the stability analysis for coupled complex Ginzburg-Landau equations with averaged terms differs from that for coupled complex Ginzburg-Landau equations with the averages removed.

Original languageEnglish (US)
Pages (from-to)203-219
Number of pages17
JournalPhysica D: Nonlinear Phenomena
Volume54
Issue number3
DOIs
StatePublished - Jan 1 1992

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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