Three-dimensional numerical simulation of flow mode transition in the LEC InP melt
by Shuxian Chen, Mingwei Li, Zili Feng
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 7, No. 8, 2007

Abstract: The flow and heat transfer of InP melt in Liquid-Encapsulated Czochralski (LEC) crystal growth has been studied using a time-dependent and three-dimensional turbulent bulk flow model. The transition from time-independent axisymmetric flow to time-dependent non-axisymmetric flow and then returning to time-independent axisymmetric flow again, is numerically observed by increasing the crystal rotation rate. The origin of the transition from an axisymmetric flow to a non-axisymmetric flow is attributed to the baroclinic instability characterised by the inclination of the temperature contours in the azimuthal direction. As a result, the critical non-dimensional parameters for the transitions were derived.

Online publication date: Wed, 14-Nov-2007

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