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Hydrodynamic decay of decorated quantum vortex rings
Physics Letters A ( IF 2.6 ) Pub Date : 2021-05-06 , DOI: 10.1016/j.physleta.2021.127409
L. Moriconi

The decay of quantum vortex rings in counterflow regimes, visualized in Helium II with the help of solid hydrogen particles trapped to their cores, has been a puzzling issue within the usual description of superfluid vortex dynamics, grounded on the hypothesis that a vortex filament is, effectively, an extended massless object subject to a canceling superposition of Magnus and mutual friction forces. We discuss, from a general energy-budget point of view, a phenomenological solution of this problem, which relies on viscous and quantum dissipation mechanisms, the later associated to the backreaction of vortex singular structures on the surrounding two-component fluid mixture.



中文翻译:

装饰量子涡环的流体动力学衰减

在逆流状态下,量子涡旋环的衰变(在氦气II中借助被困在其核心中的固体氢粒子的帮助下可视化)在超流体涡旋动力学的通常描述中一直是一个令人费解的问题,该假说基于涡旋丝是有效地,一个扩展的无质量物体会受到马格努斯和相互摩擦力的抵消作用。我们从一般的能量预算角度讨论了这个问题的现象学解决方案,该解决方案依赖于粘性和量子耗散机制,后者与涡旋奇异结构在周围两组分流体混合物上的后反应有关。

更新日期:2021-05-17
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