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On a strongly damped wave equation for the flame front

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Abstract

In two-dimensional free-interface problems, the front dynamics can be modeled by single parabolic equations such as the Kuramoto-Sivashinsky equation (K-S). However, away from the stability threshold, the structure of the front equation may be more involved. In this paper, a generalized K-S equation, a nonlinear wave equation with a strong damping operator, is considered. As a consequence, the associated semigroup turns out to be analytic. Asymptotic convergence to K-S is shown, while numerical results illustrate the dynamics.

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Correspondence to Chuanju Xu.

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Dedicated to Roger Temam on his 70th Birthday, with Respect and Admiration

Project supported by the National Natural Science Foundation of China (No. 11071203), the 973 High Performance Scientific Computation Research Program (No. 2005CB321703), the US-Israel Binational Science Foundation (No. 2006-151) and the Israel Science Foundation (No. 32/09).

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Brauner, CM., Lorenzi, L., Sivashinsky, G.I. et al. On a strongly damped wave equation for the flame front. Chin. Ann. Math. Ser. B 31, 819–840 (2010). https://doi.org/10.1007/s11401-010-0616-1

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  • DOI: https://doi.org/10.1007/s11401-010-0616-1

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