Coalescence and break-up of drops in two-phase flows |
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Authors: | AM Podvysotsky AA Shraiber |
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Institution: | Institute of Engineering Thermophysics of the Ukr.S.S.R. Academy of Sciences, Kiev, U.S.S.R. |
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Abstract: | The systematic experimental study of physical phenomena taking place at collisions of drops of water, water-glycerine solutions and transformer oil moving with moderate and high relative velocities has been carried out. The cases of drops interaction of one fluid and various fluids are considered. The regularities of drops collisions both in the quiescent and the moving gaseous medium have been studied. It has been stated that interaction is almost always accompanied by breaking a large drop with forming a certain amount of polydisperse fragments. The generalizing formulae are obtained for the parameter of coalescence and break-up Φji, as well as for the function of fragments distribution by their size and initial velocity. |
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