Vortex density spectrum of quantum turbulence

被引：78

作者：

Roche, P. E.

Diribarne, P.

Didelot, T.

Francais, O.

Rousseau, L.

Willaime, H.

机构：

[1] CNRS, Inst NEEL, F-38042 Grenoble 9, France

[2] Univ Grenoble 1, F-38042 Grenoble 9, France

[3] Chambre Commerce & Ind Paris, Grp ESIEE, F-93162 Noisy Le Grand, France

[4] Conservatoire Natl Arts & Metiers, Phys Lab, F-75003 Paris, France

[5] Ecole Super Phys & Chim Ind Ville Paris, F-75231 Paris 05, France

来源：

EPL | 2007年 / 77卷 / 06期

关键词：

D O I：

10.1209/0295-5075/77/66002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The fluctuations of the vortex density in a turbulent quantum fluid are deduced from local second-sound attenuation measurements. These measurements are performed with a micromachined open-cavity resonator inserted across a flow of turbulent He-II near 1.6 K. The frequency power spectrum of the measured vortex line density is compatible with a (- 5/3) power law. The physical interpretation is discussed.

引用

页数：5

共 24 条

[1] OBSERVATION OF A REMANENT VORTEX-LINE DENSITY IN SUPERFLUID-HELIUM [J].