文献类型：期刊文献

英文题名：A novel fractal model for permeability of damaged tree-like branching networks

作者：Miao, Tongjun[1];Chen, Aimin[2];Zhang, Liwei[1];Yu, Boming[3]

第一作者：苗同军

通讯作者：Miao, TJ[1]

机构：[1]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Henan, Peoples R China;[3]Huazhong Univ Sci & Technol, Sch Phys, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China

第一机构：新乡学院物理与电子工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Henan, Peoples R China.|[110717]新乡学院物理与电子工程学院;[11071]新乡学院;

年份：2018

卷号：127

起止页码：278-285

外文期刊名：INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER

收录：;EI(收录号：20182905547254);Scopus(收录号：2-s2.0-85049759278);WOS:【SCI-EXPANDED(收录号:WOS:000445994000029)】；

基金：This work was supported by the National Natural Science Foundation of China (through Grant No. U1704132), the Research Key Project of Science and Technology of Education Bureau of Henan Province, China (through Grant No. 17A470013 and 14A140030), and the ninth group of key disciplines in Henan province (Grant No. 2018119).

语种：英文

外文关键词：Damage; Tree-like branching networks; Permeability

摘要：Damage of the tree-like branching networks in nature is a very prevalent phenomenon, which has attracted a great deal of attention in various fields ranging from animate to inanimate flow systems for several decades. In this study, a novel model for permeability is proposed for damaged tree-like branching networks based on the fractal characteristics of tree-like branching networks. It is found that the proposed model is a function of structure parameters of damaged tree-like branching networks, such as the numbers (p) of damaged channels, the diameter ratio (beta), length ratio (alpha), branching number (n), branching level (k), and the total number of branching levels (m) in the network. The influence of the micro-structural parameters on the effective permeability of the networks is systematically studied. It is found that the numbers of damaged channels and branching levels have significant effect on its permeability and pressure drop. The present results are much different from the heat transfer in damaged treelike branching networks. The model may have the potential in analysis and design of fluid flow systems. (C) 2018 Elsevier Ltd. All rights reserved.