微小重力場におけるFZ法単結晶成長問題 : 第2報,コイルの位置・巻き数,および表面張力に依存する液柱変形挙動(流体工学,流体機械)

概要

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A novel numerical scheme for the analysis of conducting fluid flow under the alternating current magnetic field is presented. In this scheme, the large deformation problem of a free surface is stably calculated by using the level set method, and the computation of the electromagnetic field is economically carried out by discretizing the governing equations formulated by the A-φ method with hybrid FEM-BEM. With this scheme, the deformation problem of a silicon liquid bridge is analyzed in the non-gravity field. As a result, it is confirmed numerically that the deformation caused by the Lorentz force depends on the relative coil position, number of turns, and the magnitude of surface tension. Moreover, in the real condition, it is observed that the deformation of the free surface is kept small, which corresponds to the theory.
社団法人日本機械学会の論文
2003-08-25