Nonlinear wave interactions in porous media filled with a quantum fluid

被引：0
|
作者：
N. I. Pushkina
机构：
[1] Moscow State University,Research Computing Center
来源：
Acoustical Physics | 2004年 / 50卷
关键词：
Helium; Porous Medium; Fluid Dynamic; Wave Equation; Experimental Observation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The problem of the nonlinear interaction between the fourth sound and an acoustic wave propagating in a porous medium filled with superfluid helium is solved. Based on the Landau equations of quantum fluid dynamics and on the Biot theory of mechanical waves in a porous medium, nonlinear wave equations are derived for studying the aforementioned interaction. An expression is obtained for the vertex that determines the excitation of an acoustic wave by two waves of the fourth sound. The possibility of an experimental observation of this process is estimated.
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页码：721 / 724
页数：3
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