An efficient finite element procedure for analyzing three-phase porous media based on the relaxed Picard method
文献类型：期刊论文
| 作者 | Wei, Changfu; Li, Wentao |
| 刊名 | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
 |
| 出版日期 | 2015 |
| 卷号 | 101期号:11页码:825-846 |
| 关键词 | solid-water-gas coupling nonlinearity multiphasic porous media finite element Picard method |
| ISSN号 | 0029-5981 |
| DOI | 10.1002/nme.4830 |
| 英文摘要 | Effective simulation of the solid-liquid-gas coupling effect in unsaturated porous media is of great significance in many diverse areas. Because of the strongly nonlinear characteristics of the fully coupled formulations for the three-phase porous media, an effective numerical solution scheme, such as the finite element method with an efficient iterative algorithm, has to be employed. In this paper, an efficient finite element procedure based on the adaptive relaxed Picard method is developed for analyzing the coupled solid-liquid-gas interactions in porous media. The coupled model and the finite element analysis procedure are implemented into a computer code PorousH2M, and the proposed procedure is validated through comparing the numerical simulations with the experimental benchmarks. It is shown that the adaptive relaxed Picard method has salient advantage over the traditional one with respect to both the efficiency and the robustness, especially for the case of relatively large time step sizes. Compared with the Newton-Raphson scheme, the Picard method successfully avoids the unphysical spurious unloading' phenomenon under the plastic deformation condition, although the latter shows a better convergence rate. The proposed procedure provides an important reference for analyzing the fully coupled problems related to the multi-phase, multi-field coupling in porous media. Copyright (c) 2014 John Wiley & Sons, Ltd. |
| WOS研究方向 | Engineering ; Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:000349076400002 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3703]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Wei, Changfu,Li, Wentao. An efficient finite element procedure for analyzing three-phase porous media based on the relaxed Picard method[J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING,2015,101(11):825-846. |
| APA | Wei, Changfu,&Li, Wentao.(2015).An efficient finite element procedure for analyzing three-phase porous media based on the relaxed Picard method.INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING,101(11),825-846. |
| MLA | Wei, Changfu,et al."An efficient finite element procedure for analyzing three-phase porous media based on the relaxed Picard method".INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING 101.11(2015):825-846. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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