Heating flux effects on floating zone growth under micro-gravity conditions
by R. Bennacer, M. El Ganaoui, E. Semma, A. Cheddadi
International Journal of Materials and Product Technology (IJMPT), Vol. 22, No. 1/2/3, 2005

Abstract: Numerical computation of the heat flux distribution effect on the unsteadiness of the liquid bridge flow in mg environment is achieved in a 2D axisymmetrical configuration. A model coupling liquid bridge to phase change is developed. The interaction of the thermo-capillary flows with solid/liquid interface is analysed considering the latent heat effects. The results show the strong effect of external thermal boundary conditions as a control parameter on the hydrodynamic and the crystal grown by using a Floating Zone (FZ) technique. The growth speed is controlled by the latent heat at the interface and the focalisation of the heat flux at the free surface.

Online publication date: Tue, 30-Nov-2004

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