Tortuosity and Dissipation of Liquid 4He in Aerogel

被引：0

作者：

C. Ashton

S. Babuin

A. I. Golov

机构：

[1] Manchester University,Schuster Laboratory

来源：

Journal of Low Temperature Physics | 2005年 / 138卷

关键词：

Helium; Porous Medium; Magnetic Material; Hydrodynamic Model; Silica Aerogel;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Flow of liquid 4He through silica aerogel has been studied by means of a torsional oscillator. Preliminary results on the tortuosity and dissipation of the 4He flow in 88%-porous aerogel are compared with earlier measurements on a 92%-porous sample where a transverse sound resonant technique was used. A hydrodynamic model for saturated superfluid helium in porous media is presented and its predictions are compared with the experimental results.

引用

页码：183 / 188

页数：5

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