Coherent vortex structures in quantum turbulence

被引：49

作者：

Baggaley, A. W. ^{[1
]}

Barenghi, C. F. ^{[1
]}

Shukurov, A. ^{[1
]}

Sergeev, Y. A. ^{[2
]}

机构：

[1] Newcastle Univ, Sch Math & Stat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Newcastle Univ, Sch Mech & Syst Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

EPL | 2012年 / 98卷 / 02期

关键词：

VORTICES; DYNAMICS; INTERMITTENCY;

D O I：

10.1209/0295-5075/98/26002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum turbulence, easily generated in superfluid helium, consists of a disordered tangle of thin, discrete vortex lines of quantised circulation which move in a fluid without viscosity. In this report we show that, in very intense quantum turbulence, the vortex tangle contains small coherent vortical structures (bundles of quantised vortices) which arise from the fundamental Biot-Savart interaction between vortices, and which are similar to the intermittent, coherent structures ("worms") observed in ordinary viscous turbulence. Our result highlights the similarity between quantum turbulence and ordinary turbulence, and sheds new light into the origin of the " worms" in ordinary turbulence. Copyright (C) EPLA, 2012

引用

页数：6

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