Wave propagation in thermoelastic saturated porous medium

被引:0
作者
M. D. Sharma
机构
[1] Kurukshetra University,Department of Mathematics
来源
Journal of Earth System Science | 2008年 / 117卷
关键词
Thermoelastic; poroelastic; velocity; attenuation;
D O I
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中图分类号
学科分类号
摘要
Biot’s theory for wave propagation in saturated porous solid is modified to study the propagation of thermoelastic waves in poroelastic medium. Propagation of plane harmonic waves is considered in isotropic poroelastic medium. Relations are derived among the wave-induced temperature in the medium and the displacements of fluid and solid particles. Christoffel equations obtained are modified with the thermal as well as thermoelastic coupling parameters. These equations explain the existence and propagation of four waves in the medium. Three of the waves are attenuating longitudinal waves and one is a non-attenuating transverse wave. Thermal properties of the medium have no effect on the transverse wave. The velocities and attenuation of the longitudinal waves are computed for a numerical model of liquid-saturated sandstone. Their variations with thermal as well as poroelastic parameters are exhibited through numerical examples.
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