Abstract
The sensitivity to the vaporization Damkohler number of the behavior of a co-flow laminar spray diffusion flame in an oscillating flow field is investigated. Droplet grouping induced by the host gas flow oscillations is accounted for. The effect of droplet grouping is described through a specially constructed model for the vaporization Damkohler number that responds to the proximity of the droplets as they cluster due to the spray-flow oscillations. A formal analytical solution is developed for Schwab-Zeldovitch parameters through which the dynamics of the spray flame front shapes and thermal fields are deduced. Computed results based on the solutions demonstrate how strongly the vaporization Damkohler number including droplet grouping effects impacts on the type of primary homogeneous flame formed and on the possible existence of multiple flame sheets as a result of dynamic changes from under- to over-ventilated flames as the flow field oscillates.
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References
J.B. Greenberg, D. Katoshevski, The influence of droplet grouping on a Burke-Schumann spray diffusion flame in an oscillating flow field. Proc. Combust. Inst. 33, 2055–2062 (2011)
J.B. Greenberg, D. Katoshevski, Spray flame dynamics with oscillating flow and droplet grouping. Combust. Theory Model. 16(2), 321–340 (2012)
J.B. Greenberg, D. Katoshevski, Parametric study of droplet grouping in spray diffusion flames, in AIAA Paper 2012-0343, 50th AIAA Aerospace Sciences Meeting, Nashville, Tn., Jan 2012
J.B. Greenberg, D. Katoshevski, Vaporization Damkohler number and enrichment effects in spray diffusion flames in an oscillating flow field. Combust. Sci. Technol. 185, 898–919 (2013)
J.B. Greenberg, D. Katoshevski, Aspects of Droplet Grouping in Polydisperse Spray Diffusion Flames, in AIAA Paper 2015-0421, AIAA SCITECH 2015 Meeting, Florida, USA, Jan 2015
J. Reveillon, F.–X. Demoulin, Evaporating droplets in turbulent reacting flow, in Proceedings of the Combustion Institute, vol. 31 (2007) pp. 2319–2326
J.B. Greenberg, I. Silverman, Y. Tambour, On the origins of spray sectional conservation equations. Combust. Flame 93, 90–96 (1993)
J.F. de la Mora, D.E. Rosner, Inertial deposition of particles revisited and extended: eulerian approach to a traditionally Lagrangian problem. PhysicoChem. Hydrodyn. 2(1), 1–21 (1981)
D. Katoshevski, Z. Dodin, G. Ziskind, Aerosol clustering in oscillating flows: mathematical analysis. At. Sprays 15, 401–412 (2005)
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Katoshevski, D., Greenberg, J. (2016). Effect of Grouping of Fuel Droplets on a Flame Formed by an Oscillating Spray Jet. In: Segalini, A. (eds) Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics, vol 185. Springer, Cham. https://doi.org/10.1007/978-3-319-30602-5_65
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DOI: https://doi.org/10.1007/978-3-319-30602-5_65
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