Conclusions
The results of the experiments show the significant effect of the dimensions of the gas—drop system on the character of its combustion: in the range of clouds with a volume greater than 500 m3, it is possible to attain apparent flame velocities greater than 100 m/sec. Here, it was established that in large aerosol clouds of atomized hydrocarbon fuels with a similar disperse composition, the apparent velocity of the flame increases with an increase in the molecular weight of the fuel.
Comparison of the dynamics of ascent of the resulting vortex ring with the calculated data in [17] shows that the behavior of the combustion products of dispersed fuels in the free atmosphere can be classified as a case of free upward convection from an impulsive point source. The relation H(t)∼(Qit2)1/4 for this case is equivalent to the relation for the ascent of the products of a powerful explosion [14].
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Odessa. Translated from Fizika Goreniya i Vzryva, Vol. 25, No. 3, pp. 21–28, May–June, 1989.
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Kopyt, N.K., Struchaev, A.I., Krasnoshchekov, Y.I. et al. Combustion of large volumes of dispersed fuels and the evolution of their products in the free atmosphere. Combust Explos Shock Waves 25, 279–285 (1989). https://doi.org/10.1007/BF00788797
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DOI: https://doi.org/10.1007/BF00788797