Viscosity coefficients of normal fluid and oscillatory motion in bulk liquid helium at low temperatures

被引：0

作者：

Jun, CW ^{[1
]}

机构：

[1] Kyung Nam Univ, Dept Phys, Masan 631701, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2004年 / 44卷 / 03期

关键词：

viscosity coefficients; penetration depth; laminar drag; energy dissipation;

D O I：

10.3938/jkps.44.501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The viscosity coefficients and the penetration depth of a viscous wave in bulk liquid helium at low temperatures are evaluated explicitly as functions of temperature, including the effects of three-phonon processes originating from the anomalous excitation spectrum. Based on these results, the laminar drag exerted by liquid helium on an oscillating microsphere and the temperature variation of the energy dissipation of the oscillating plate are discussed.

引用

页码：501 / 505

页数：5

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