Fluid deformation and solute transport in macroscopic anisotropic porous media

被引：0
|
作者：
Ye Y. [1 ,2 ]
Zhang Y. [1 ,2 ]
Cai F. [1 ,2 ]
Xie Y. [1 ,2 ]
Lu C. [2 ,3 ]
机构：
[1] College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing
[2] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing
[3] Yangtze Institute for Conservation and Development, Hohai University, Nanjing
来源：
Shuikexue Jinzhan/Advances in Water Science | 2021年 / 32卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Dilution; Fluid deformation; Helical shape flow; Macroscopic anisotropy; Numerical simulation; Solute transport; Stretching and folding;
D O I：
10.14042/j.cnki.32.1309.2021.06.009
中图分类号：
学科分类号：
摘要：
To investigate the effect of irregular shape and distribution of porous media on groundwater flow and solute transport, a double-layer herringbone structure was artificially constructed and numerical simulations of groundwater flow and transport were performed. Such a structure simulates the existing inclined cross-bedding geological features and forms macroscopic anisotropic hydraulic conductivity field. The results show that the macroscopic anisotropic structure creates helical flow, leading to the stretching and folding of the streamlines and the irregular deformation of the solute plume, and thus, solute dilution is enhanced significantly. The vertical relative position between the macroscopic anisotropic structure and the solute plume has a remarkable effect on solute transport. © 2021, Editorial Board of Advances in Water Science. All right reserved.
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页码：903 / 910
页数：7
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