Pressure waves in porous medium saturated with liquid containing gas bubbles

被引：2

作者：

Nakoryakov, VE ^{[1
]}

Dontsov, VE

机构：

[1] RAS, Siberian Branch, Inst Thermophys, Novosibirsk, Russia

[2] RAS, Siberian Branch, Inst Phys, Novosibirsk, Russia

来源：

JOURNAL OF ENGINEERING MECHANICS | 2005年 / 131卷 / 09期

关键词：

wave pressure; porous media; bubbles; oscillations;

D O I：

10.1061/(ASCE)0733-9399(2005)131:9(966)

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Theoretical analyses on nonlinear pressure waves evolution in porous medium saturated with a liquid containing gas bubbles is carried out. The evolution equations for fast and slow longitudinal modes are derived for slightly nonlinear, disperse, and dissipation processes. The pressure wave distribution in gas bubble liquid-saturated porous media was investigated experimentally. It was revealed that both modes might have oscillating structure induced by bubble oscillation in the wave. It is shown that the wave damping is determined by a combined impact of heat losses due to gas cooling in the bubbles and dissipation due to longitudinal displacement of liquid and porous skeleton, both influenced by the wave. Experimental data on the velocity and structure of fast and slow modes are compared with results of theoretical modeling.

引用

页码：966 / 973

页数：8

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