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Breakup of Liquid Drops Due to Convective Flow in Shocked Sprays by G.E. Fox; E.K. Dabora is a Engineering article available to read on EtoBox.

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An analytical model of the breakup of droplets in a column or a spray subjected to shock waves is presented. The model is based on observation of the breakup of isolated drops and is an extension of the model for a column of droplets previously developed by the authors, wherein droplet motion was ignored. In this model, allowance for the simultaneous stripping and motion of the droplets is made and, in addition, a probability factor, accounting for the probability of wake-droplet interactions, is included for the spray case. It is shown analytically that~ in the range of spacing to drop diameter ratio, S/Do = 10-25, of importance to two-phase detonations, and for 2<M<6, the breakup time of the drops can be 55% to 90% of the breakup time of an isolated drop under the same convective flow conditions. Experiments with columns of 1.94-mm water drops at S/Do= 14.6, under the action of M = 2 shocks, indicate, on the basis of the diameter growth, a breakup-time reduction in good agreement with the value of tb~/tb = 0.62, predicted analytically, where tb and tbo are the breakup time for isolated drops and drops in column, respectively. Data for similar water columns at higher Much Numbers

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Author

G.E. Fox; E.K. Dabora

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd; Elsevier BV (ISSN 1540-7489)

Published

1973

Field

Engineering (Physical Sciences)