气候变化领域集成服务门户(CCPortal): Numerical modeling of density-driven solute transport in fractured porous media with the extended finite element method

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DOI	10.1016/j.advwatres.2019.103453
	Numerical modeling of density-driven solute transport in fractured porous media with the extended finite element method
	Hosseini N.; Bajalan Z.; Khoei A.R.
发表日期	2020
ISSN	0309-1708
卷号	136
英文摘要	In this paper, a numerical model is developed based on the X-FEM technique to simulate the transport of dense solute in a single fluid phase through the fractured porous media. The governing equation is based on the mass conservation law which is applied to the fluid phase and the solute in both matrix and fracture domain. The integral governing equations of the mass exchange between the fracture and the surrounding matrix is derived. The extended finite element method (X-FEM) is applied by employing appropriate enrichment functions to model the fractured porous domain. The superiority of the X-FEM is that the FE mesh is not necessary to be conformed to the fracture geometry, so the regular mesh is utilized independent of the position of the fracture. Finally, several numerical examples of dense brine transport in a water aquifer are studied to validate the proposed computational algorithm. Moreover, the effects of various parameters of the fracture, such as the aperture and interconnectivity, as well as the matrix medium, such as the permeability and diffusion are investigated. It is shown that the proposed computational model provides an accurate prediction of subsurface hydrology for a field-scale closed desert basin. © 2019
关键词	Aquifers Diffusion in liquids Fracture Mesh generation Numerical methods Numerical models Porous materials Solute transport Closed desert basin Computational algorithm Density driven flows Enrichment functions Extended finite element method Fractured porous media Mass conservation law Subsurface hydrology Finite element method aquifer computer simulation desert equation finite element method fracture geometry fractured medium numerical model porous medium solute transport
语种	英语
来源机构	Advances in Water Resources
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/131875
推荐引用方式 GB/T 7714	Hosseini N.,Bajalan Z.,Khoei A.R.. Numerical modeling of density-driven solute transport in fractured porous media with the extended finite element method[J]. Advances in Water Resources,2020,136.
APA	Hosseini N.,Bajalan Z.,&Khoei A.R..(2020).Numerical modeling of density-driven solute transport in fractured porous media with the extended finite element method.,136.
MLA	Hosseini N.,et al."Numerical modeling of density-driven solute transport in fractured porous media with the extended finite element method".136(2020).