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Combustion, Explosion, and Shock Waves

, Volume 46, Issue 3, pp 273–278 | Cite as

Flame spread over fuel films in opposed gas flow

  • A. A. Korzhavin
  • N. A. Kakutkina
  • I. G. Namyatov
Article

Abstract

The effect of the velocity of forced oxidizer flow on the pattern and velocity of flame spread over a fuel film was experimentally studied, and the limiting conditions of steady-state flame propagation were determined. New experimental evidence was obtained for the validity of the previously proposed model of flame propagation in a thermally thin system. It was found that, in a thermally thin system at a certain value of the gas flow velocity, laminar flame propagation is followed by spin flame propagation in a narrow range of gas flow velocities, and then by quenching. In the laminar layer-by-layer propagation regime, the flame velocity does not depend on the average velocity of the opposed gas flow. The proposed model for the laminar layerby-layer flame propagation agrees with experiment taking into account the fuel film flow under the action of the Marangoni effect due to the condensed-phase temperature gradient.

Key words

thermally thin system flame fuel film 

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Copyright information

© MAIK/Nauka 2010

Authors and Affiliations

  • A. A. Korzhavin
    • 1
  • N. A. Kakutkina
    • 1
  • I. G. Namyatov
    • 1
  1. 1.Institute of Chemical Kinetics and Combustion, Siberian DivisionRussian Academy of SciencesNovosibirskRussia

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