Grid Generated Turbulence in Helium II

被引：0
作者：
J.J. Niemela
K.R. Sreenivasan
R.J. Donnelly
机构：
[1] The Abdus Salam International Center for Theoretical Physics,
[2] University of Oregon,undefined
来源：
Journal of Low Temperature Physics | 2005年 / 138卷
关键词：
Viscosity; Experimental Data; Attenuation; Helium; Magnetic Material;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We present experimental data on decaying turbulence generated by towing a grid of crossed tines through a stationary sample of He II. The present data were obtained using a grid of substantially improved design from that used in previous investigations of grid generated superfluid turbulence. An important preliminary observation is that both the magnitude and temperature dependence of the effective kinematic viscosity of the turbulence—deduced from measurements of the attenuation of second sound as a function of time—are not substantially altered by details of the grid used to generate the turbulent flow.
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页码：537 / 542
页数：5
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