Knowledge Management System of Institue of Mechanics, CAS
| Thermally induced evolution of phase transformations in gas hydrate sediment | |
Zhang XH(张旭辉) ; Lu XB(鲁晓兵); Li QP; Yao HY; LU XB
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| Source Publication | Science China-Physics Mechanics & Astronomy
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| 2010 | |
| Volume | 53Issue:8Pages:1530-1535 |
| ISSN | 1674-7348 |
| Abstract | Thermally induced evolution of phase transformations is a basic physical-chemical process in the dissociation of gas hydrate in sediment (GHS). Heat transfer leads to the weakening of the bed soil and the simultaneous establishment of a time varying stress field accompanied by seepage of fluids and deformation of the soil. As a consequence, ground failure could occur causing engineering damage or/and environmental disaster. This paper presents a simplified analysis of the thermal process by assuming that thermal conduction can be decoupled from the flow and deformation process. It is further assumed that phase transformations take place instantaneously. Analytical and numerical results are given for several examples of simplified geometry. Experiments using Tetra-hydro-furan hydrate sediments were carried out in our laboratory to check the theory. By comparison, the theoretical, numerical and experimental results on the evolution of dissociation fronts and temperature in the sediment are found to be in good agreement. |
| DOI | 10.1007/s11433-010-4060-8 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000280477200021 |
| WOS Keyword | CLATHRATE ; DISSOCIATION ; SENSITIVITY |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Funding Organization | National High Technology Research and Development Program of China [2006AA09A209-7] ; Major Oil and Gas Program of China [2008ZX05026-04-011] ; Chinese Academy of Sciences [KJCX2-YW-L02] ; National Natural Science Foundation of China [1077218] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43603 |
| Collection | 水动力学与海洋工程重点实验室(2009-2011) |
| Corresponding Author | LU XB |
| Recommended Citation GB/T 7714 | Zhang XH,Lu XB,Li QP,et al. Thermally induced evolution of phase transformations in gas hydrate sediment[J]. Science China-Physics Mechanics & Astronomy,2010,53,8,:1530-1535. |
| APA | 张旭辉,鲁晓兵,Li QP,Yao HY,&LU XB.(2010).Thermally induced evolution of phase transformations in gas hydrate sediment.Science China-Physics Mechanics & Astronomy,53(8),1530-1535. |
| MLA | 张旭辉,et al."Thermally induced evolution of phase transformations in gas hydrate sediment".Science China-Physics Mechanics & Astronomy 53.8(2010):1530-1535. |
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