Three-dimensional numerical simulation of temperature and flow fields in a Czochralski growth of germanium | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 6، دوره 5، شماره 1 - شماره پیاپی 9، مرداد 2018، صفحه 69-77 اصل مقاله (1.4 M) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2017.1208.1087 | ||
| نویسندگان | ||
| M.H. Tavakoli* ؛ Zahra Taheri Ghahfarokhi | ||
| Physics Department, Bu-Ali Sina University | ||
| چکیده | ||
| For a Czochralski growth of Ge crystal, thermal fields have been analysed numerically using the three-dimensional finite volume method (FLUENT package). The arrangement used in a real Czochralski crystal growth lab included a graphite crucible, heat shield, heating device, thermal insulation and chamber including two gas outlets. We have considered two cases for calculations, which are configuration containing (a) only gas and (b) melt and gas, related to initial stages of the growth process (seeding process). It has been assumed that the growth system is in steady state, fluids are incompressible Newtonian fluids and the flow is laminar. It was shown that the thermal field in the growth setup is completely three-dimensional. Especially, the temperature field at the melt free surface has not a uniform radial distribution due to the three-dimensional orientation of Argon flow above it. | ||
| کلیدواژهها | ||
| Computer simulation؛ Fluid flow؛ Heat transfer؛ Czochralski method | ||
| مراجع | ||
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