Abstract

Both physical and chemical factors influence combusion instabilities and explosions in two-phase systems consisting of fuel liquid drops in a gaseous oxidizer. It is generally agreed that in two-phase detonations, fuel drops are broken up via a mass stripping mechanism and form combustible mixtures of fuel micromist and hot gaseous oxidizer in the wake of each parent drop. The large surface area between the micromist (micron size drops) and the hot oxidizer enable chemical reactions to proceed at a rapid enough rate to support the incident shock front. Therefore, the detonability of two-phase mixtures is affected by both the fuel drop breakup and the chemical energy release rate.

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