Development and demonstrative application of a 3-D numerical model of subsurface flow, heat transfer, and reactive chemical transport: 3DHYDROGEOCHEM

Hwai Ping Cheng, Gour Tsyh Yeh

研究成果: 雜誌貢獻期刊論文同行評審

36 引文 斯高帕斯(Scopus)

摘要

This paper presents the development of a 3-D coupled model of subsurface flow, heat transfer, and reactive chemical transport where the local equilibrium assumption is applied. Strong coupling is used for steady-state simulations, while weak coupling may be employed for transient simulations to save computation time. Four types of boundary conditions and a complete suite of geochemical reactions are taken into account. The flow equation is discretized by the Galerkin finite element method. Both the reactive chemical transport and heat transfer equations are solved by either the hybrid Lagrangian-Eulerian or the conventional Eulerian finite element method. Two approaches are considered to compute the transport of aqueous components. The Picard method is used to handle non-linearity in both reactive chemical transport and unsaturated subsurface flow, while the Newton-Raphson method is employed to calculate chemical equilibrium. Two realistic, albeit hypothetical example problems are used to demonstrate the capability of the model. Copyright (C) 1998 Elsevier Science B.V.

原文???core.languages.en_GB???
頁(從 - 到)47-83
頁數37
期刊Journal of Contaminant Hydrology
34
發行號1-2
DOIs
出版狀態已出版 - 15 10月 1998

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