Mixed Convection in Pipe and Duct Flows With Strong Magnetic Fields
Mixed Convection in Pipe and Duct Flows With Strong Magnetic Fields
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DOI：
10.1115/1.4049833
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发表时间：
2021
影响因子：
14.3
通讯作者：
O. Zikanov;I. Belyaev;Y. Listratov;P. Frick;N. Razuvanov;V. Sviridov
中科院分区：
文献类型：
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作者：
O. Zikanov;I. Belyaev;Y. Listratov;P. Frick;N. Razuvanov;V. Sviridov
施加的强磁场抑制湍流并深刻地改变导电流体的流动性质。我们认为这种效果的情况下，混合对流的管道和导管，在独特的制度，其特征在于极端的温度梯度和高振幅的波动（所谓的磁对流波动）最近被发现。这种结构直接关系到未来核聚变反应堆液态金属部件的设计。这篇综述介绍了最近研究中出现的流动转变的一般情况，说明了关键的已知事实，并概述了剩余的开放问题。聚变反应堆技术和新的实验和数值方法的影响也进行了讨论。
An imposed strong magnetic field suppresses turbulence and profoundly changes the nature of the flow of an electrically conducting fluid. We consider this effect for the case of mixed convection flows in pipes and ducts, in which unique regimes characterized by extreme temperature gradients and high-amplitude fluctuations (the so-called magnetoconvective fluctuations) have been recently discovered. The configuration is directly relevant to the design of the liquid-metal components of future nuclear fusion reactors. This review presents the general picture of the flow transformation emerging from the recent studies, illustrates the key known facts, and outlines the remaining open questions. Implications for fusion reactor technology and novel experimental and numerical methods are also discussed.