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THE MARANGONI CONVECTION EXPLANATION: A TWO-POINT THEORY (TPT) OF MASS AND HEAT TRANSFER AND NEW LAPLACE EQUATION APPROACH

M. D. Staicovici
Head scientific researcher first rank, Ph. D. Engn. at SC OVM-ICCPET SA, 236 Vitan Road, 74369, Bucharest, Romania

D. Isvoranu
University Politehnica of Bucharest, Dept. of Mechanical Engineering, Splaiul Independentei 113, Bucharest, Romania

Abstract

So far, Marangoni convection is not satisfactorily explained. This work, completing a previous one, gives the basic mechanism explanation of this effect. Some typical case studies, where Marangoni convection occurs, are regarded through the light of this new theory. The TPT is used further to model a pseudo-Marangoni cell with an ammonia-water absorption process. All modeling results confirm Marangoni convection basic mechanism explanation, which is general. The work emphasizes that TPT is a powerful tool in refined qualitative/quantitative binary bi-phase local interaction analysis. Here, it was essential in finding out Marangoni convection true explanation.

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