A generalized model for the effective thermal conductivity of porous media based on self-similarity
文献类型：期刊论文
| 作者 | Feng YJ; Yu BM(郁伯铭); Zou MQ; Zhang DM |
| 刊名 | Journal of Physics D-Applied Physics
 |
| 出版日期 | 2004 |
| 卷号 | 37期号:21页码:3030-3040 |
| 通讯作者邮箱 | yu3838@public.wh.hb.cn |
| ISSN号 | 0022-3727 |
| 关键词 | Fractal Sandstone Pores Permeability Model Granular-Materials Characters Fabrics Systems |
| 通讯作者 | Yu, BM (reprint author), Huazhong Univ Sci & Technol, Dept Phys, 1037 Luoyu Rd, Wuhan 430074, Peoples R China. |
| 中文摘要 | A generalized model for the effective thermal conductivity of porous media is derived based on the fact that statistical self-similarity exists in porous media. The proposed model assumes that porous media consist of two portions: randomly distributed non-touching particles and self-similarly distributed particles contacting each other with resistance. The latter are simulated by Sierpinski carpets with side length L = 13 and cutout size C = 3, 5, 7 and 9, respectively, depending upon the porosity concerned. Recursive formulae are presented and expressed as a function of porosity, ratio of areas, ratio of component thermal conductivities and contact resistance, and there is no empirical constant and every parameter has a clear physical meaning. The model predictions are compared with the existing experimental data, and good agreement is found in a wide range of porosity of 0.14-0.80, and this verifies the validity of the proposed model. |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | FRACTAL SANDSTONE PORES ; PERMEABILITY MODEL ; GRANULAR-MATERIALS ; CHARACTERS ; FABRICS ; SYSTEMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000225382500014 |
| 公开日期 | 2009-08-03 ; 2010-06-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/33735]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Feng YJ,Yu BM,Zou MQ,et al. A generalized model for the effective thermal conductivity of porous media based on self-similarity[J]. Journal of Physics D-Applied Physics,2004,37(21):3030-3040. |
| APA | Feng YJ,Yu BM,Zou MQ,&Zhang DM.(2004).A generalized model for the effective thermal conductivity of porous media based on self-similarity.Journal of Physics D-Applied Physics,37(21),3030-3040. |
| MLA | Feng YJ,et al."A generalized model for the effective thermal conductivity of porous media based on self-similarity".Journal of Physics D-Applied Physics 37.21(2004):3030-3040. |
入库方式： OAI收割
来源：力学研究所
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