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arXiv 1908.04359cond-mat.other
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超流~ 4 He中环向正常流体流动引起的涡环不稳定性

Instability of a Vortex Ring due to Toroidal Normal Fluid Flow in Superfluid 4He

Bhimsen K. Shivamoggi

摘要:

涡环自推进超流4 He示出驱动不稳定的环形正常流体流动。这种不稳定性有定性的相似之处Kelvin波的不稳定性的涡丝驱动的正常流体流动沿涡丝。本不稳定性的增长率被发现是独立的涡环的半径。

英文摘要:

Vortex rings self-propelling in superfluid 4He are shown to be driven unstable by a toroidal normal fluid flow. This instability has qualitative similarities with the Donnelly-Glaberson instability of Kelvin waves on a vortex filament driven by the normal fluid flow along the vortex filament. The growth rate of the present instability is found to be independent of the radius of the vortex ring.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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