Instanton solutions in the problem of wrinkled flame front dynamics

Details Instanton solutions in the problem of wrinkled flame front dynamics Instanton solutions in the problem of wrinkled flame front dynamics

1999-11-02

arxiv.org/abs/patt-sol/9911002v1

Nonlinear Sciences

Pattern Formation and Solitons

14 pages, 1 figure, Latex

Scientific paper

The statistics of wrinkling flame front is invetigated by the quantum filed theory methods. We dwell on the WKB approximation in the functional integral which is analogous to the Wyld functional integral in turbulence. The main contribution to statistics is due to a coupled field-force configuration. This configuration is related to a kink between metastable exact pole solutions of the Syvashinsky equation. These kinks are responsible for both the formation of new cusps and the rapid power-law acceleration of the mean flame-front. The problem of asymptotic stability of the solutions is discussed.

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