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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical study of the influence of melt convection on the crucible dissolution rate in a silicon directional solidification process
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Numerical study of the influence of melt convection on the crucible dissolution rate in a silicon directional solidification process

机译：硅对流凝固过程中熔体对流对坩埚溶解速率影响的数值研究

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摘要

We carried out 3D time-dependent numerical simulations using the software package STHAMAS3D to get some basic understanding of the role of melt convection on the crucible dissolution rate, measured as the whole mass of dopant originated from the crucible which can be found in the melt after a given period of time. It was found that melt convection has a strong influence on the dissolution rate: the dissolution rate strongly increases when the melt convection is present. Furthermore the influence of the diffusion coefficients on dissolution rate was also studied. The simulations show that the dissolution rate strongly increases with the increasing of the diffusion coefficient. Therefore it is mandatory to have accurate measurements of diffusion coefficients.
机译：我们使用软件包STHAMAS3D进行了3D时间相关的数值模拟，以对熔体对流对坩埚溶解速率的作用有一些基本的了解，以从坩埚中产生的掺杂剂的总质量衡量，该掺杂剂可以在坩埚熔解后发现在给定的时间段内。已经发现，熔体对流对溶解速率具有强烈的影响：当存在熔体对流时，溶解速率大大增加。此外，还研究了扩散系数对溶出度的影响。仿真结果表明，随着扩散系数的增加，溶出度显着增加。因此，必须对扩散系数进行准确的测量。

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