A Coupled Darcy-Forchheimer Flow Model in Fractured Porous Media
文献类型：期刊论文
| 作者 | Xiong, Feng2,3,4; Jiang, Yijun5; Zhu, Chun1,4,7; Teng, Lin7; Cheng, Hao3; Wang, Yajun6 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2023 |
| 卷号 | 13期号:1页码:- |
| 关键词 | fractured rocks Forchheimer flow Darcy flow finite volume method |
| 英文摘要 | Aiming at nonlinear flow in fractured porous media, based on the finite volume method, the discrete equations of Darcy flow in porous and Forchheimer flow in fracture were derived, and a solution method for coupling flow is proposed. The flow solution by the proposed method for single fracture and intersecting fracture is verified against Frih's solution. Based on this method, nonlinear flow behavior for fractured rock deep-buried tunnels under high water heads was discussed. The results show that the hydraulic gradient of surrounding rock is characterized by large at the bottom and small at the top, with a maximum difference of 2.5 times. Therefore, the flow rate at the bottom of the tunnel is greater than that at the top. The fracture flow rate along the flow direction is also greater than that in the vertical flow direction, with a maximum difference of 60 times. The distribution homogeneity and density of fracture are the most important factors that affect the hydraulic behavior of fractured rock tunnels. The more fractures concentrated in the direction of water pressure and the greater the density, the greater the surrounding rock conductivity and the greater the flow rate of the tunnel. Under this condition, the water-inflow accident of the tunnel would be prone to occur. The research results provide a reference for the waterproof design and engineering practice of fractured rock tunnels. |
| 学科主题 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000909104800001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35527]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.School of Civil Engineering, Wuhan University, Wuhan 430072, China 4.Shanxi Provincial Key Laboratory of Highway, Bridge and Tunnel, Changan University, Xi’an 710064, China 5.Department of Civil Engineering, Sichuan College of Architectural Technology, Deyang 618000, China 6.School of Civil and Resource Engineering, China University of Science and Technology Beijing, Beijing 100083, China 7.College of Civil Engineering, Qilu Institute of Technology, Jinan 250200, China |
| 推荐引用方式 GB/T 7714 | Xiong, Feng,Jiang, Yijun,Zhu, Chun,et al. A Coupled Darcy-Forchheimer Flow Model in Fractured Porous Media[J]. APPLIED SCIENCES-BASEL,2023,13(1):-. |
| APA | Xiong, Feng,Jiang, Yijun,Zhu, Chun,Teng, Lin,Cheng, Hao,&Wang, Yajun.(2023).A Coupled Darcy-Forchheimer Flow Model in Fractured Porous Media.APPLIED SCIENCES-BASEL,13(1),-. |
| MLA | Xiong, Feng,et al."A Coupled Darcy-Forchheimer Flow Model in Fractured Porous Media".APPLIED SCIENCES-BASEL 13.1(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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