On the Green function of the Lord-Shulman thermoelasticity equations
文献类型：期刊论文
| 作者 | Wang, Zhi-Wei1,3,4; Fu, Li-Yun5; Wei, Jia1,3,4; Hou, Wanting5; Ba, Jing2; Carcione, Jose M.6 |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2020 |
| 卷号 | 220期号:1页码:393-403 |
| ISSN号 | 0956-540X |
| 关键词 | Fourier analysis Numerical solutions Seismic attenuation Wave propagation |
| DOI | 10.1093/gji/ggz453 |
| 英文摘要 | Thermoelasticity extends the classical elastic theory by coupling the fields of particle displacement and temperature. The classical theory of thermoelasticity, based on a parabolic-type heat-conduction equation, is characteristic of an unphysical behaviour of thermoelastic waves with discontinuities and infinite velocities as a function of frequency. A better physical system of equations incorporates a relaxation term into the heat equation; the equations predict three propagation modes, namely, a fast P wave (E wave), a slow thermal P wave (T wave), and a shear wave (S wave). We formulate a second-order tensor Green's function based on the Fourier transform of the thermodynamic equations. It is the displacement-temperature solution to a point (elastic or heat) source. The snapshots, obtained with the derived second-order tensor Green's function, show that the elastic and thermal P modes are dispersive and lossy, which is confirmed by a plane-wave analysis. These modes have similar characteristics of the fast and slow P waves of poroelasticity. Particularly, the thermal mode is diffusive at low thermal conductivities and becomes wave-like for high thermal conductivities. |
| WOS关键词 | WAVE-PROPAGATION ; 2ND SOUND ; ATTENUATION ; POROELASTICITY |
| 资助项目 | Major State Research Development Program of China[2016YFC0601101] ; Strategic Priority Research Program of the Chinese Academy of Science[XDA10010403] ; PetroluemChina Project[2016A-4801] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000506839900028 |
| 资助机构 | Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; Strategic Priority Research Program of the Chinese Academy of Science ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project ; PetroluemChina Project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95904]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Wang, Zhi-Wei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Hohai Univ, Sch Earth Sci & Engn, Nanjing 211100, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China 5.China Univ Petr East China, Kev Lab Deep Oil & Gas, Qingdao 266580, Peoples R China 6.Ist Nazl Oceanog & Geofis Sperimentale OGS, Borgo Grotta Gigante 42c, I-34010 Trieste, Italy |
| 推荐引用方式 GB/T 7714 | Wang, Zhi-Wei,Fu, Li-Yun,Wei, Jia,et al. On the Green function of the Lord-Shulman thermoelasticity equations[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2020,220(1):393-403. |
| APA | Wang, Zhi-Wei,Fu, Li-Yun,Wei, Jia,Hou, Wanting,Ba, Jing,&Carcione, Jose M..(2020).On the Green function of the Lord-Shulman thermoelasticity equations.GEOPHYSICAL JOURNAL INTERNATIONAL,220(1),393-403. |
| MLA | Wang, Zhi-Wei,et al."On the Green function of the Lord-Shulman thermoelasticity equations".GEOPHYSICAL JOURNAL INTERNATIONAL 220.1(2020):393-403. |
入库方式： OAI收割
来源：地质与地球物理研究所
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