Direct simulation of the influence of the pore structure on the diffusion process in porous media
文献类型：期刊论文
| 作者 | Yong, Yumei1; Lou, Xiaojun1; Li, Sha1; Yang, Chao1; Yin, Xiaolong2 |
| 刊名 | COMPUTERS & MATHEMATICS WITH APPLICATIONS
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 67期号:2页码:412-423 |
| 关键词 | Diffusion process Porosity Tortuosity Lattice Boltzmann method Porous media |
| ISSN号 | 0898-1221 |
| 其他题名 | Comput. Math. Appl. |
| 中文摘要 | In this paper, we numerically study the influence of pore structures on diffusion processes in porous media. The porous media geometry models are constructed based on two-dimensional Voronoi diagrams, and they feature randomly connected channels with large pores embedded to simulate the heterogeneity of porous media. A link-type two-relaxation-time (LTRT) lattice Boltzmann (LB) method is employed to solve the diffusion equation. The tortuosity is characterized as a function of porosity and pore structure. From numerical results, a correlation for the tortuosity as a function of porosity is derived for Voronoi geometries without large pores. Geometries with large pores at the same total porosity have higher tortuosity, which indicates that geometric heterogeneity slows down the diffusion. (C) 2013 Elsevier Ltd. All rights reserved. |
| 英文摘要 | In this paper, we numerically study the influence of pore structures on diffusion processes in porous media. The porous media geometry models are constructed based on two-dimensional Voronoi diagrams, and they feature randomly connected channels with large pores embedded to simulate the heterogeneity of porous media. A link-type two-relaxation-time (LTRT) lattice Boltzmann (LB) method is employed to solve the diffusion equation. The tortuosity is characterized as a function of porosity and pore structure. From numerical results, a correlation for the tortuosity as a function of porosity is derived for Voronoi geometries without large pores. Geometries with large pores at the same total porosity have higher tortuosity, which indicates that geometric heterogeneity slows down the diffusion. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Mathematics, Applied |
| 研究领域[WOS] | Mathematics |
| 关键词[WOS] | LATTICE BOLTZMANN METHOD ; MONTE-CARLO-SIMULATION ; MOLECULAR-DIFFUSION ; BOUNDARY-CONDITIONS ; TORTUOSITY ; SEDIMENTS ; DISPERSION ; ADVECTION ; EQUATIONS ; COEFFICIENTS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000331156800015 |
| 公开日期 | 2014-05-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/8074]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Colorado Sch Mines, Dept Petr Engn, Golden, CO 80402 USA |
| 推荐引用方式 GB/T 7714 | Yong, Yumei,Lou, Xiaojun,Li, Sha,et al. Direct simulation of the influence of the pore structure on the diffusion process in porous media[J]. COMPUTERS & MATHEMATICS WITH APPLICATIONS,2014,67(2):412-423. |
| APA | Yong, Yumei,Lou, Xiaojun,Li, Sha,Yang, Chao,&Yin, Xiaolong.(2014).Direct simulation of the influence of the pore structure on the diffusion process in porous media.COMPUTERS & MATHEMATICS WITH APPLICATIONS,67(2),412-423. |
| MLA | Yong, Yumei,et al."Direct simulation of the influence of the pore structure on the diffusion process in porous media".COMPUTERS & MATHEMATICS WITH APPLICATIONS 67.2(2014):412-423. |
入库方式： OAI收割
来源：过程工程研究所
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