Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Study on the Vertical Bridgman Crystal Growth with Thermosolutal Convection

  • Park, Byung-Kyu (Department of Thermal, Fluid, and Environmental Engineering, Korea Institute of Machinery and Materials) ;
  • Kim, Moo-Geun (School of Mechanical and Automotive Engineering, Inje University) ;
  • Kim, Geun-Oh (Department of Thermal, Fluid, and Environmental Engineering, Korea Institute of Machinery and Materials)
  • Published : 2001.08.01
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Abstract

A numerical analysis has been carried out to investigate the influences of thermosolutal convection on the heat and mass transfer and solute segregation in crystals grown by the vertical Bridgman technique. The governing equations are solved by a finite-volume method using the power law scheme and the SIMPLE algorithm in which body-fitted coordinate system has been used. A primary convective cell driven by thermal gradients forms in the bulk of the domain, while a secondary convective cell driven by solutal gradients forms near interface. As the solutal Rayleigh number increases, secondary cell becomes to be stronger and has a great influence on the radial concentration along the interface.

Keywords

References

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