Approximate water vertical infiltration extremum path in unsaturated soils
文献类型：期刊论文
| 作者 | Li, Jiwei2; Zhu, Yongjian2; Jin, Hui3; Zhou, Bo1; Han, Libing4; Wang, Huabin1; Wei, Changfu4 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 625页码:11 |
| 关键词 | Principle of stationary action Vertical infiltration of water Extremum path Unsaturated soils |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2023.129989 |
| 英文摘要 | According to the principle of stationary action, water vertically infiltrates unsaturated soils along an infiltrationduration extremum path with linear deviation. The solution of the Euler-Lagrange equation with appropriate boundary conditions yields a linear relationship between the moisture diffusion function and the ratio of the spatial location to the wetting front distance. By integrating the law of mass conservation at the boundary, the temporal evolution of the wetting front is implicitly derived. A linear term is introduced to compensate for the deviation in calculating the position of the wetting front owing to the Taylor series approximation. Based on the representation of the diffusion function in relation to the boundary diffusivity, the spatial location and the position of the wetting front, a direct way to determine hydraulic conductivity is presented. Unlike existing methods, the proposed approach involves fewer hypotheses and is more theoretically robust. Moreover, the material parameters in the proposed approach have a clear physical meaning and can be explicitly determined. Using the Brooks-Corey hydraulic function, the evolution and distribution characteristics of the water content are explicitly determined, while the advancing wetting front is implicitly represented. The results of the proposed solution for different types of soil are in agreement with these numerical and analytical solutions. |
| 资助项目 | National Natural Science Foundation of China[41931286] ; National Natural Science Foundation of China[41877233] ; Natural Science Foundation of Zhejiang Province[LY 19E080008] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001050365200001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39231]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhu, Yongjian; Jin, Hui |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Civil & Hydraul Engn, Wuhan 430074, Hubei, Peoples R China 2.Taizhou Univ, Inst Rd & Bridge Engn, Sch Architecture & Civil Engn, Taizhou 318000, Zhejiang, Peoples R China 3.Zhejiang Univ Sci & Technol, Sch Civil Engn & Architecture, Hangzhou 310023, Zhejiang, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jiwei,Zhu, Yongjian,Jin, Hui,et al. Approximate water vertical infiltration extremum path in unsaturated soils[J]. JOURNAL OF HYDROLOGY,2023,625:11. |
| APA | Li, Jiwei.,Zhu, Yongjian.,Jin, Hui.,Zhou, Bo.,Han, Libing.,...&Wei, Changfu.(2023).Approximate water vertical infiltration extremum path in unsaturated soils.JOURNAL OF HYDROLOGY,625,11. |
| MLA | Li, Jiwei,et al."Approximate water vertical infiltration extremum path in unsaturated soils".JOURNAL OF HYDROLOGY 625(2023):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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