Effects of anisotropy and solid/liquid thermal conductivity ratio on flow instabilities during inverted Bridgman growth
| Autor: | M. El Ganaoui, E. Semma, Eddie Leonardi, G. de Vahl Davis, Victoria Timchenko, J. Kaenton |
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| Rok vydání: | 2004 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Mechanical Engineering chemistry.chemical_element Thermodynamics Rayleigh number Conductivity Condensed Matter Physics Physics::Fluid Dynamics Condensed Matter::Materials Science Thermal conductivity chemistry Heat transfer Streamlines streaklines and pathlines Gallium Anisotropy Directional solidification |
| Zdroj: | International Journal of Heat and Mass Transfer. 47:3403-3413 |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/j.ijheatmasstransfer.2004.01.017 |
| Popis: | The effects of a range of solid/liquid conductivity ratios on convection and flow during solidification of pure gallium in an inverted Bridgman apparatus have been investigated. A variety of steady and unsteady flow patterns, both symmetric and asymmetric, were observed and compared to available spectral results. Transition Rayleigh number values have been identified. The effects of anisotropy in thermal conductivity of gallium on the flow patterns were included. The computational method based on a fixed grid enthalpy formulation has been extended to model convection and anisotropic conduction during directional solidification. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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