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Simulation of wave propagation in linear thermoelastic media
Carcione, Jose M.1,2; Wang, Zhi-Wei3,4; Ling, Wenchang2; Salusti, Ettore5; Ba, Jing2; Fu, Li-Yun6
2019
Source PublicationGEOPHYSICS
ISSN0016-8033
Volume84Issue:1Pages:T1-T11
AbstractWe have developed a numerical algorithm for simulation of wave propagation in linear thermoelastic media, based on a generalized Fourier law of heat transport in analogy with a Maxwell model of viscoelasticity. The wavefield is computed by using a grid method based on the Fourier differential operator and two time-integration algorithms to cross-check solutions. Because the presence of a slow quasistaticmode (the thermal mode) makes the differential equations stiff and unstable for explicit time-stepping methods, first, a second-order time-splitting algorithm solves the unstable part analytically and a Runge-Kutta method the regular equations. Alternatively, a first-order explicit Crank-Nicolson algorithm yields more stable solutions for low values of the thermal conductivity. These time-stepping methods are second-and first-order accurate, respectively. The Fourier differential provides spectral accuracy in the calculation of the spatial derivatives. The model predicts three propagation modes, namely, a fast compressional or (elastic) P-wave, a slow thermal P diffusion/wave (the T-wave), having similar characteristics to the fast and slow P-waves of poroelasticity, respectively, and an S-wave. The thermal mode is diffusive for low values of the thermal conductivity and wave-like for high values of this property. Three velocities define the wavefront of the fast P-wave, i.e., the isothermal velocity in the uncoupled case, the adiabatic velocity at low frequencies, and a higher velocity at high frequencies.
DOI10.1190/GEO2018-0448.1
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China
WOS KeywordATTENUATION
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA14010303] ; Major State Research Development Program of China[2016YFC0601101] ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China[BC2018019]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major State Research Development Program of China ; Major State Research Development Program of China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Specially-Appointed Professor Program of Jiangsu Province, China ; Cultivation Program of "111" Plan of China ; Cultivation Program of "111" Plan of China
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000457601800056
PublisherSOC EXPLORATION GEOPHYSICISTS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90502
Collection油气资源研究院重点实验室
Corresponding AuthorBa, Jing
Affiliation1.Ist Nazl Oceanog & Geofis Sperimentale OGS, Borgo Grotta Gigante 42c, I-34010 Trieste, Italy
2.Hohai Univ, Sch Earth Sci & Engn, Nanjing, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
5.Univ Roma La Sapienza, Dept Phys, Rome, Italy
6.China Univ Petr East China, Sch Geosci, Qingdao, Peoples R China
Recommended Citation
GB/T 7714
Carcione, Jose M.,Wang, Zhi-Wei,Ling, Wenchang,et al. Simulation of wave propagation in linear thermoelastic media[J]. GEOPHYSICS,2019,84(1):T1-T11.
APA Carcione, Jose M.,Wang, Zhi-Wei,Ling, Wenchang,Salusti, Ettore,Ba, Jing,&Fu, Li-Yun.(2019).Simulation of wave propagation in linear thermoelastic media.GEOPHYSICS,84(1),T1-T11.
MLA Carcione, Jose M.,et al."Simulation of wave propagation in linear thermoelastic media".GEOPHYSICS 84.1(2019):T1-T11.
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