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Droplet Combustion in a Stream of Oxidant

J. C. Birchley
Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences
Vol. 347, No. 1649 (Dec. 23, 1975), pp. 195-212
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/79106
Page Count: 18
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Droplet Combustion in a Stream of Oxidant
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Abstract

The burning of a fuel droplet in a stream of oxidant at high Peclet number is investigated as a small perturbation from a convection dominated situation. By making the assumptions of constant density, zero viscosity and uniform values for specific heat and transport coefficients, we focus attention on the production and transfer of heat and chemical species. The situation is analysed in (i) an outer region away from the droplet, (ii) a boundary layer region near the droplet, (iii) a rear stagnation region and (iv) a downstream wake region. The appropriate governing equations are obtained and the solution illustrated numerically. The structure of the intense reaction zone and also the force experienced by the droplet are also investigated. The results are discussed in the light of previous studies of droplet burning in a stream of oxidant.

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