Abstract:
We propose a 3D model and perform the numerical investigation of the convective heat and mass transfer in the vessel to produce multicrystalline silicon by the vertical Bridgeman's technique. The flow in the liquid is described by the Navier–Stokes equations as the Boussinesk's approximation, and the distribution of dissolved substance concentration is defined from the solved equation of the convective diffusion. Under consideration was the influence of the nonuniform heating of the rotary vessel side walls and crystallization front shape on the flow structure in the melt and distribution of the substance dissolved in the liquid.
Keywords:convection, polycrystalline silicon, heat and mass transfer, simulation.