Author： Kuznetsov G. V. Mamontov G. Ya. Taratushkina G. V.
Publisher： Springer Publishing Company
ISSN： 0010-5082
Source： Combustion, Explosion, and Shock Waves, Vol.40, Iss.1, 2004-01, pp. : 70-76
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Abstract
The problem of ignition of a condensed substance by single particles heated up to high temperatures is solved within the framework of the two‐dimensional heat‐transfer model. Numerical studies are performed for typical materials: polyvinyl nitrate and carbonic particles. Regimes of ignition of a condensed substance by a single particle at relatively low temperatures are adequate in terms of the ignition delay to regimes of heating of the condensed substance by a gas flow without particles; at high temperatures, they correspond to regimes of heating by a metal plate with a fixed temperature. In a certain (rather narrow) range of particle temperatures, the use of the two‐dimensional heat‐transfer model yields ignition‐delay values substantially different from other regimes.
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