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Coupling of heat flux and vortex polarization in superfluid helium
Journal of Mathematical Physics ( IF 1.2 ) Pub Date : 2020-11-01 , DOI: 10.1063/5.0010433
Lidia Saluto 1 , David Jou 2, 3
Affiliation  

We consider a macroscopic description of the mutual influence between heat flux and vortex polarization in superfluid helium, in which the vortices produce a lateral deviation of the heat flux, and the heat flux produces a lateral drift of vortices. This coupling is a consequence of a microscopic Magnus force and mutual friction force between the vortices and the flow of excitations carrying the heat. We keep track of these effects with simplified macroscopic equations, and we apply them to second sound propagation between rotating concentric cylinders and to spatial distribution of polarization across a rectangular channel with vortices polarized orthogonally to the channel in the presence of an imposed heat flux.

中文翻译:

超流氦中热通量和涡旋极化的耦合

我们考虑了超流氦中热通量和涡旋极化之间相互影响的宏观描述,其中涡旋产生热通量的横向偏差,而热通量产生涡旋的横向漂移。这种耦合是微观马格努斯力和涡流与携带热量的激励流之间的相互摩擦力的结果。我们使用简化的宏观方程跟踪这些效应,并将它们应用于旋转同心圆柱体之间的第二次声音传播,以及在存在外加热通量的情况下,矩形通道上的偏振空间分布,涡流与通道正交。
更新日期:2020-11-01
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