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Steady states of the surface of a nonadiabatic flame near the limits

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Combustion, Explosion and Shock Waves Aims and scope

Abstract

Within the framework of a weakly linear model, which describes a nonadiabatic flame near the limit of its propagation caused by heat losses, steady states of the combustion-wave from are studied. Three-dimensional structures of the wave front are formed because of diffusion-thermal instability of the planar flame. The limits of propagation of a curved flame front are shown to expand if the diffusion-thermal instability is taken into account: a cellular flame can exist at heat losses higher than the critical value for the two-dimensional flame. The stability of steady solutions, which describe the cellular flame near the limits of its propagation, is studied. For sufficiently high heat losses, steady solutions for a nonadiabatic flame with front discontinities are obtained.

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Authors and Affiliations

  1. Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk

    A. E. Medvedev

  2. Institute of Chemical Kinetics and Combustion, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk

    S. S. Minaev

Authors
  1. A. E. Medvedev
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  2. S. S. Minaev
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Additional information

Translated fromFizika Goreniya i Vzryva, Vol. 35, No. 4, pp. 3–11, July–August 1999.

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Medvedev, A.E., Minaev, S.S. Steady states of the surface of a nonadiabatic flame near the limits. Combust Explos Shock Waves 35, 351–358 (1999). https://doi.org/10.1007/BF02674464

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  • DOI: https://doi.org/10.1007/BF02674464

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