The coalescence of water drops II. The coalescence problem and coalescence efficiency

Nitza Arbel, Zev Levin

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By the use of the model of approaching drops (Arbel and Levin, 1977) the coalescence efficiencies of drops are computed. It is found that for interactions of drops at their terminal velocities the coalescence depends both on the size of the large drop and on the size ratio of the interacting drops in agreement with the experimental results of Whelpdale and List (1971) and Levin and Machnes (1977).

The results were found to be sensitive to the assumption of the drops deformation and to the critical separation distance. This distance is defined as the distance at which the drops begin to merge. The variations of the coalescence efficiency with these parameters is discussed.
Original languageHebrew
Pages (from-to)895-914
Number of pages20
JournalPure and Applied Geophysics
Issue number4
StatePublished - 26 Apr 1977

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