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Semi-Direct Numerical Simulation of a Czochralski Melt Flow on High-Performance Computers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Enger, Sven Schaefer, Florian Breuer, Michael Durst, Franz |
| Copyright Year | 2002 |
| Abstract | The three-dimensional and time-dependent turbulent flow field and heat transfer of the melt in a Czochralski crystal growth process were predicted using an efficient block-structured finite-volume Navier-Stokes solver. From semidirect numerical simulations, detailed information of instantaneous and time-averaged quantities were obtained. Two different crucible rotation rates were considered, Dc = -2 rpm and -5 rpm, whereas the crystal rotation was kept constant at Ds = 20 rpm. Exact boundary conditions for the temperature were obtained from experiments. The time-averaged results are discussed and it is shown that, due to velocity and temperature fluctuations underneath the crystal, the growth conditions are superior at higher crucible rotation rates. The main reason for this is the stabilizing effect of the centrifugal forces. Furthermore, it is shown that the boundary layer below the crystal is very thin, so that the influence on the bulk flow is negligible. Rotation will mainly maintain the circular shape of the crystal and ensure the homogeneous distribution of dopants. |
| Starting Page | 201 |
| Ending Page | 212 |
| Page Count | 12 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/978-3-642-55919-8_22 |
| Alternate Webpage(s) | https://page-one.springer.com/pdf/preview/10.1007/978-3-642-55919-8_22 |
| Alternate Webpage(s) | https://doi.org/10.1007/978-3-642-55919-8_22 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
