论文标题

磁反射中的热量和动量转移的精制平均场模型

Refined mean field model of heat and momentum transfer in magnetoconvection

论文作者

Zürner, Till

论文摘要

在本文中,Zürner等人在垂直磁场中的雷利 - 贝纳德对流的热量和动量传递的理论模型。 (物理学Rev. E 94,043108(2016))被重新审视。使用来自最新实验和数值研究的新数据,模型被简化并扩展到Hartmann数字的全部范围,从而在消失的磁场的极限下重现了Grossmann-Lohse理论的结果。将修订后的模型与液态金属磁电视的实验结果进行了比较,并表明热传输是令人满意的。以雷诺数为代表的动量运输的同意不太好,这表明了磁反看的理论处理中的一些缺陷。

In this article, the theoretical model on heat and momentum transfer for Rayleigh-Bénard convection in a vertical magnetic field by Zürner et al. (Phys. Rev. E 94, 043108 (2016)) is revisited. Using new data from recent experimental and numerical studies the model is simplified and extended to the full range of Hartmann numbers, reproducing the results of the Grossmann-Lohse theory in the limit of vanishing magnetic fields. The revised model is compared to experimental results in liquid metal magnetoconvection and shows that the heat transport is described satisfactorily. The momentum transport, represented by the Reynolds number, agrees less well which reveals some shortcomings in the theoretical treatment of magnetoconvection.

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