Interactions between unidirectional quantized vortex rings
Interactions between unidirectional quantized vortex rings
复制标题
单向量子化涡环之间的相互作用
DOI:
10.1103/physrevfluids.1.044502
复制
发表时间:
2016
影响因子:
2.7
通讯作者:
Zhu T
中科院分区:
文献类型:
--
作者:
Zhu T
We have used the vortex filament method to numerically investigate the interactions between pairs of quantized vortex rings that are initially traveling in the same direction but with their axes offset by a variable impact parameter. The interaction of two circular rings of comparable radii produces outcomes that can be categorized into four regimes, dependent only on the impact parameter; the two rings can either miss each other on the inside or outside or reconnect leading to final states consisting of either one or two deformed rings. The fraction of energy that went into ring deformations and the transverse component of velocity of the rings are analyzed for each regime. We find that rings of very similar radius only reconnect for a very narrow range of the impact parameter, much smaller than would be expected from the geometrical cross-section alone. In contrast, when the radii of the rings are very different, the range of impact parameters producing a reconnection is close to the geometrical value. A second type of interaction considered is the collision of circular rings with a highly deformed ring. This type of interaction appears to be a productive mechanism for creating small vortex rings. The simulations are discussed in the context of experiments on colliding vortex rings and quantum turbulence in superfluid helium in the zero-temperature limit.
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DOI:
--
发表时间:
2003
期刊:
Phys.Rev.Lett. 91
影响因子:
--
作者:
W.F.Vinen;M.Tsubota;A.Mitani
通讯作者:
A.Mitani
影响因子:
8.6
作者:
Robert McDougall Kerr
通讯作者:
Robert McDougall Kerr
影响因子:
1.7
作者:
T. Kambe;T. Takao
通讯作者:
T. Takao
影响因子:
8.6
作者:
C. Barenghi;D. C. Samuels
通讯作者:
D. C. Samuels
DOI:
10.1103/physreva.67.015601
发表时间:
2002
期刊:
arXiv: Condensed Matter
影响因子:
--
作者:
M. Leadbeater;D. C. Samuels;C. Barenghi;Charles S. Adams
通讯作者:
Charles S. Adams