Non-equilibrium thermodynamics analysis of rotating counterflow superfluid turbulence

被引：4

作者：

Sciacca, Michele ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento Metodi & Modelli Matemat, I-90128 Palermo, Italy

来源：

MATHEMATICAL AND COMPUTER MODELLING | 2010年 / 51卷 / 1-2期

关键词：

Superfluid turbulence; Onsager-Casimir reciprocity relation; Rotating counterflow turbulence; LIQUID HELIUM-II; MUTUAL FRICTION; HEAT CURRENT; DERIVATION;

D O I：

10.1016/j.mcm.2009.09.002

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In two previous papers, two evolution equations for the vortex line density L, proposed by Vinen, were generalized to rotating superfluid turbulence and compared with each other. Here, the already generalized alternative Vinen equation is extended to the case in which counterflow and rotation are not collinear. Then, the obtained equation is considered from the viewpoint of non-equilibrium thermodynamics. According to this formalism, the compatibility between the evolution equation for L and the one for the velocity of the superfluid component is studied. The compatibility condition requires the presence of a new term dependent on the anisotropy of the tangle, which indicates how the friction force depends on the rotation rate. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：91 / 99

页数：9

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