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首页> 外文期刊>Journal of Crystal Growth >Numerical simulation of magnetic field design for damping thermocapillary convection in a floating half-zone
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Numerical simulation of magnetic field design for damping thermocapillary convection in a floating half-zone

机译：浮动半区中阻尼热毛细管对流的磁场设计数值模拟

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摘要

The magnetic fields produced by electrical coils are designed for damping the thermocapillary convection in a floating half-zone in microgravity. The fields are designed specially to reduce the flow near the free surface and then in the melt zone by adjusting the longitudinal coil positions close to the melt zone. The effects of the designed magnetic fields on reducing the flow velocity and temperature distribution non-uniformity in the melt zone are stronger than those of the case of an uniform longitudinal magnetic field obtained by numerical simulation, particularly at the melt-rod interface. It brings fundamental insights into the heat and mass transfer control at the solidification interface by the magnetic field Design for crystal growth by the floating full-zone method.
机译：电线圈产生的磁场设计用于在微重力中衰减浮动半区中的热毛细管对流。这些磁场经过特殊设计，可通过调节靠近熔体区的纵向盘管位置来减少自由表面附近和熔体区中的流量。设计的磁场对降低熔体区域内的流速和温度分布不均匀性的影响要强于通过数值模拟获得的均匀纵向磁场的情况，尤其是在熔体-熔棒界面处。它通过磁场设计为凝固界面处的传热和传质控制提供了基本的见识，并通过浮动全区法设计了晶体生长。

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