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STRUCTURE OF A FLAME FRONT PROPAGATING AGAINST THE FLOW NEAR A COLD WALL

VADIM N. KURDYUMOV

E.T.S. de Ingeniería Industrial, Universidad de Salamanca, Salamanca (Bejar), Spain

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and

AMABLE LIÑÁN

E.T.S.I. Aeronáuticos, UPM, Madrid, Spain

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https://doi.org/10.1142/S0218127402006023Cited by:3 (Source: Crossref)

Abstract

The flashback or propagation of premixed flames against the flow of a reacting mixture, along the low velocity region near a cold wall, is investigated numerically. The analysis, carried out using the constant density approximation for an Arrhenius overall reaction, accounts for the effects of the Lewis number of the limiting reactant. Flame front propagation and flashback are only possible for values of the near wall velocity gradient below a critical value. The flame propagation becomes chaotic for small values of the Lewis number.

Keywords:

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