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An exploratory study of the mechanism of coalescence of drop pairs

University of British Columbia

High-speed movie photography of drop coalescence in a liquid-liquid extraction column has been used to study the mechanism of coalescence taking place between drop pairs undergoing mass transfer0 The direction of diffusion studied was mainly from the dispersed to the continuous phase. The density of the dispersed phase was less than that of the continuous phase. The extraction system consisted of a glass spray column of square cross-section and associated apparatus. Other main accessories included a schlieren optical system and a high-speed movie camera. The investigation was carried out in two ways: 1. Visualization of the diffusion process, by the use of the schlieren techniques, to study the motion of various materials occurring at and near the drop contact area. 2. Measurement of changes in drop shape with time.

Text

2011-05-25

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http://hdl.handle.net/2429/34881

Chemical and Biological Engineering

University of British Columbia

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