摘要: Abstract A simple model for the fire dynamics of turbulent fires is proposed and then used to derive correlations air entrainment into jet pool fires. Five parameters are identified control dynamics: diameter D, total buoyancy flow B∞, a force per unit mass at adiabatic stoichiometric temperature ( ΔT ad T ∞ )g , ambient density ϱ∞, fuel ratio S. These lead by dimensional arguments rates, which further refined using simplified physical model. Three distinct regimes in fires: (a) close surface where rates vary as Z 1 2 (where vertical distance from source), (b) near neck-in area 3 (c) farther downstream but below flame tip 5 . The plot experimental data proportionality coefficients determined. It shown, also, that there relationship between up visible feights; such would allow one estimate measuring heights.
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sci-hub.se 参考文章(13)
P.H. Thomas, C.T. Webster, M.M. Raftery, Some experiments on buoyant diffusion flames Combustion and Flame. ,vol. 5, pp. 359- 367 ,(1961) , 10.1016/0010-2180(61)90117-1
G. Santo, M.A. Delichatsios, Effects of vitiated air on radiation and completeness of combustion in propane pool fires Fire Safety Journal. ,vol. 7, pp. 159- 164 ,(1984) , 10.1016/0379-7112(84)90036-5
B.J. McCaffrey, Momentum implications for buoyant diffusion flames Combustion and Flame. ,vol. 52, pp. 149- 167 ,(1983) , 10.1016/0010-2180(83)90129-3
H.A. Becker, S. Yamazaki, Entrainment, momentum flux and temperature in vertical free turbulent diffusion flames Combustion and Flame. ,vol. 33, pp. 123- 149 ,(1978) , 10.1016/0010-2180(78)90055-X
F. R. STEWARD, Prediction of the Height of Turbulent Diffusion Buoyant Flames Combustion Science and Technology. ,vol. 2, pp. 203- 212 ,(1970) , 10.1080/00102207008952248
M. G. Mungal, P. E. Dimotakis, Mixing and combustion with low heat release in a turbulent shear layer Journal of Fluid Mechanics. ,vol. 148, pp. 349- 382 ,(1984) , 10.1017/S002211208400238X
Francesco Tamanini, Direct measurements of the longitudinal variation of burning rate and product yield in turbulent diffusion flames Combustion and Flame. ,vol. 51, pp. 231- 243 ,(1983) , 10.1016/0010-2180(83)90101-3
Gunnar Heskestad, Virtual origins of fire plumes Fire Safety Journal. ,vol. 5, pp. 109- 114 ,(1983) , 10.1016/0379-7112(83)90003-6
BM Cetegen, EE Zukoski, Toshi Kubota, Entrainment in the Near and Far Field of Fire Plumes Combustion Science and Technology. ,vol. 39, pp. 305- 331 ,(1984) , 10.1080/00102208408923794
M. A. DELICHATSIOS, Strong Turbulent Buoyant Plumes. I. Similarity Combustion Science and Technology. ,vol. 24, pp. 191- 195 ,(1980) , 10.1080/00102208008952437