Evolution of vortex rings after the collapse of ultrasound bubbles in superfluids

被引:2
|
作者
Berloff, NG
Barenghi, CF
机构
[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England
[2] Newcastle Univ, Sch Math & Stat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
关键词
D O I
10.1007/s10909-005-2237-8
中图分类号
O59 [应用物理学];
学科分类号
摘要
Collapse of ultrasound bubbles in superfluids leads to the nucleation of vortex rings. Using the Gross-Pitaevskii equation for a uniform condensate we elucidate the various stages of the vortex formation and establish conditions necessary for the vortex nucleation after the collapse of an oblate moving bubble. In the case of a stationary spherically symmetrical bubble we calculate the vortex line length as a function of time after collapse.
引用
收藏
页码:481 / 486
页数:6
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