Title: Three-dimensional numerical simulation of flow mode transition in the LEC InP melt

Authors: Shuxian Chen, Mingwei Li, Zili Feng

Addresses: Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan, 618307, China. ' Institute of Power Engineering of Chongqing University, Chongqing 400030, China. ' Institute of Air Traffic Management, Civil Aviation Flight University of China, Guanghan, 618307, China

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.

Keywords: three-dimensional simulation; numerical simulation; flow transition; instability; LEC InP melt; 3D simulation; heat transfer; LEC crystal growth; turbulence; bulk flow; CFD; computational fluid dynamics.

DOI: 10.1504/PCFD.2007.015780

Progress in Computational Fluid Dynamics, An International Journal, 2007 Vol.7 No.8, pp.473 - 481

Published online: 14 Nov 2007 *

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