Physical-Based Mathematical Models for Soil and Groundwater Remediation

Gour-Tsyh (George) Yeh)

《土壤及地下水污染整治》 3卷4期 (2016/10) Pp. 229-259

https://doi.org/10.6499/JSGR.2016.0304.001

摘要

The development of subsurface media models and their applications to real-world problems has evolved significantly since 1970's. This paper discusses the physical, chemical, biological, and mechanical processes that control the evolution of groundwater quantity, quality, and deformation as well as subsidence. These processes include the fluid flow of single phase or multiple phases, thermal transport, geo-mechanics, and reactive transport as well as their interactions and feedbacks with the media. Advances in the related computational models center around their increasing design capability to better represent these coupling processes: from the simplest one-phase groundwater flow to the most complete of the aforementioned processes. Widely-used models developed by academics, research institutes, government agencies, and private companies will be reviewed in this work in terms of the processes included in the governing equations, types of boundary conditions, discretization methods, computational platform, and user' friendliness. A hypothetical problem is given to demonstrate the simulation of these coupled THMC (Thermal-Hydrology-Mechanics-Chemistry) processes.

關鍵字

multiphase flow ； thermal transport ； geo-mechanics ； reactive transport ； deformation