Viscosity for solid He-4 transport

被引：2

作者：

Kwang-Hua, Chu Rainer ^{[1
,2
]}

Li, Zhihui ^{[3
,4
]}

机构：

[1] BUAA, BeiHang Training Ctr, Beijing 100191, Peoples R China

[2] Distribut Ctr, Golmud 816000, Peoples R China

[3] China Aerodynam Res & Dev Ctr, Hyperveloc Aerodynam Inst, Mianyang 621000, Peoples R China

[4] BUAA, Natl Lab Computat Fluid Dynam, Beijing 100191, Peoples R China

来源：

FLUID PHASE EQUILIBRIA | 2015年 / 389卷

基金：

中国国家自然科学基金;

关键词：

Vacancies; Defects; Absolute reactions; IMPURITY-HELIUM SOLIDS; PRESSURE; CRYSTALS;

D O I：

10.1016/j.fluid.2015.01.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Transport of the solid helium with imbedded defects in confined domains has been recently reported. Here we used the verified absolute-reaction theory which originates from the quantum chemistry approach together with the boundary perturbation approach to calculate the temperature-dependent viscosity of flowing solid He-4 in the bulk. Both effects of the activation energy and activation volume on the temperature-dependent (shear) viscosity of flowing solid He-4 were illustrated. We found that the temperature-dependent (shear) viscosity which is a ratio of the shear stress and the shear strain rate increases a little as the temperature decreases within the selected temperature regime. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：64 / 66

页数：3

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