Abstract

AbstractThe three interfacial areas of a liquid drop evaporating in an immiscible continuous liquid have been measured from three‐dimensional still photographs. Five dispersed phases in water have been used.From empirical correlations for the vapour bubble open angle and eccentricity with the physical parameters of the system, the initial drop diameter and the vapour ratio, the three interfacial areas may be predicted. The maximum error in the predictions were found to be ±5.2% for the liquid‐liquid area, ± 17.1% for the vapour cap area and ±15% for the internal vapour‐liquid area for drops of initial diameters less than 0.4 cm.

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