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Atomization and Sprays
Fator do impacto: 1.737 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 2.2

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

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Atomization and Sprays

DOI: 10.1615/AtomizSpr.v19.i9.40
pages 863-872

STABILITY OF RICH PREMIXED SPRAY FLAMES

J. Barry Greenberg
Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa, 32000, Israel
Leonid S. Kagan
Sackler Faculty of Exact Sciences, School of Mathematical Sciences, Tel Aviv University, Israel
G. I. Sivashinsky
Sackler Faculty of Exact Sciences, School of Mathematical Sciences, Tel Aviv University, Israel

RESUMO

In this paper, results of numerical simulations of rich spray flame propagation in a two-dimensional channel are presented for the first time. The study deals with a constant density model thereby eliminating the Darrieus-Landau instability. Attention is focused on (i) the stability of planar spray flames and comparing the predicted results with those of a previously reported linear stability analysis, and (ii) nonlinear development of cellular spray flame fronts that were reported in independent experimental studies. The way in which the spray of droplets impacts on the average speed of flame propagation is also discussed. In general, the numerical simulations qualitatively replicate both experimental and theoretical results.


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