AbstractWe are interested in convection occuring during crystal growth from melts in a floating zone model. In this case, convection is mainly induced by the Marangoni effect. Our analysis shows effects of some phenomena such as differential rotation and buoyancy. Numerical computations were performed with a finite element code. Different steady thermocapillary flows are obtained by varying the following significant parameters: rotation velocity (rotation Reynolds number), temperature gradient conditions (Grashof and Bond numbers), surface tension gradient (Marangoni and capillary numbers), all of them relevant in practical crystal growth situations.


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    Title :

    A numerical simulation of buoyancy thermocapillary driven convection in a floating zone model with rotation


    Contributors:
    Roux, A. (author) / Cipriani, F.D. (author) / Bontoux, P. (author)

    Published in:

    Advances in Space Research ; 11 , 7 ; 133-141


    Publication date :

    1991-01-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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