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	Solution procedure for transport modeling in effluent recharge based on operator-splitting techniques
	Shutang Zhu ; Gang Zhao ; Yuanle Ma
	2010-10-12 ; 2010-10-12
关键词	Theoretical or Mathematical/ adsorption conjugate gradient methods convection desorption effluents finite difference methods flow through porous media groundwater wastewater treatment/ effluent recharge groundwater recharge operator-splitting technique groundwater movement reactive transport wastewater convection-dispersion adsorption desorption biodegradation upwind finite difference scheme finite volume integral convection flux preconditioned Jacobi conjugate gradient method Thomas method Gaobeidian sewage treatment plant/ A9240K Groundwater A9240C General hydrological theory A4755M Flow through porous media A0260 Numerical approximation and analysis
中文摘要	The coupling of groundwater movement and reactive transport during groundwater recharge with wastewater leads to a complicated mathematical model, involving terms to describe convection-dispersion, adsorption/desorption and/or biodegradation, and so forth. It has been found very difficult to solve such a coupled model either analytically or numerically. The present study adopts operator-splitting techniques to decompose the coupled model into two submodels with different intrinsic characteristics. By applying an upwind finite difference scheme to the finite volume integral of the convection flux term, an implicit solution procedure is derived to solve the convection-dominant equation. The dispersion term is discretized in a standard central-difference scheme while the dispersion-dominant equation is solved using either the preconditioned Jacobi conjugate gradient (PJCG) method or Thomas method based on local-one-dimensional scheme. The solution method proposed in this study is applied to the demonstration project of groundwater recharge with secondary effluent at Gaobeidian sewage treatment plant (STP) successfully.
语种	英语
出版者	Hindawi Publishing ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79334]
专题	清华大学
推荐引用方式 GB/T 7714	Shutang Zhu,Gang Zhao,Yuanle Ma. Solution procedure for transport modeling in effluent recharge based on operator-splitting techniques[J],2010, 2010.
APA	Shutang Zhu,Gang Zhao,&Yuanle Ma.(2010).Solution procedure for transport modeling in effluent recharge based on operator-splitting techniques..
MLA	Shutang Zhu,et al."Solution procedure for transport modeling in effluent recharge based on operator-splitting techniques".(2010).

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