Résumé :
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Freezing continues to show promise as a method of producing low cost water from sea water. In the process, partial freezing of the salt water yielded a slush of pure ice crystals suspended in bine, and in the separation of the ice-brine slurries and the subsequent washing of the ice crystals with fresh water, brine is displaced from the interstices of the particles by the downward flow of fresh water. The report describes research to develop a mathematical model for laminar dispersion in vertical tubes with density differences present, and to investigate the parameters of the system ; to obtain experimental data when the heavier fluid displaces the lighter and vice-versa ; and examine the effect of tube diameter if any, under otherwise identical flow conditions.
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