Abstract
AbstractThe gravity‐driven coalescence of 1‐ to 2‐cm. diameter air bubbles in glycerine and in water has been studied by high‐speed cinematography. The resulting coalescence behavior can be correlated by a simple model which assumes that each bubble trails a wake, and that the bubble coalescing from below accelerates when it enters the wake of the preceding bubble and thus overtakes the first bubble. The predictions of the model are not significantly altered by different assumed wake configurations.
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