Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023435 |
Benchmarking NAPL Redirection and Matrix Entry at Fracture Intersections Below the Water Table | |
Walton, Kenneth M.1; Unger, Andre J. A.2; Ioannidis, Matins A.3; Parker, Beth L.1 | |
2019-04-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:4页码:2672-2689 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | This paper examines a numerical modeling approach for two-phase flow and considers the contribution of a simple network of fracture intersections to the whole discrete fracture-matrix flow system; it develops a benchmark problem for a non-wetting, dense, non-aqueous phase liquid invading a water-saturated, discretely fractured, porous medium near a fracture intersection under cases of invader fluid redirection at the intersection, breakthrough to a constricted fracture branch, or breakthrough into the rock matrix using capillary entry pressures. Numerical simulation is performed with a multiphase, compositional DFM software, using a finite difference discretization of the governing equations. In these simulation cases, the "star-delta" method for eliminating line- and point-control volumes at fracture intersections is contrasted to retaining all control volumes, the goal being to test the efficacy of the star-delta simplification. Flux over the domain's boundaries and mass storage are comparison metrics. Results indicate that conduits (or lack thereof) have a strong effect on NAPL architecture with an accompanying change in efflux in the case of redirection; they have some early-time effects on architecture and efflux in constricted fracture cases. The scenario presented herein leads to multiphase flow forecasts in intersection conduits which can serve as an experimentally testable hypothesis and as a benchmark for comparisons of simulator forecasts. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468597900007 |
WOS关键词 | NONAQUEOUS PHASE LIQUIDS ; 2-PHASE FLOW ; RELATIVE PERMEABILITY ; DNAPL MIGRATION ; NETWORKS ; PORE ; MODEL ; DENSE ; MECHANISMS ; EXTRACTION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182212 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Guelph, Inst Groundwater Res G360, Guelph, ON, Canada; 2.Univ Waterloo, Dept Earth & Environm Sci, Waterloo, ON, Canada; 3.Univ Waterloo, Dept Chem Engn, Waterloo, ON, Canada |
推荐引用方式 GB/T 7714 | Walton, Kenneth M.,Unger, Andre J. A.,Ioannidis, Matins A.,et al. Benchmarking NAPL Redirection and Matrix Entry at Fracture Intersections Below the Water Table[J]. WATER RESOURCES RESEARCH,2019,55(4):2672-2689. |
APA | Walton, Kenneth M.,Unger, Andre J. A.,Ioannidis, Matins A.,&Parker, Beth L..(2019).Benchmarking NAPL Redirection and Matrix Entry at Fracture Intersections Below the Water Table.WATER RESOURCES RESEARCH,55(4),2672-2689. |
MLA | Walton, Kenneth M.,et al."Benchmarking NAPL Redirection and Matrix Entry at Fracture Intersections Below the Water Table".WATER RESOURCES RESEARCH 55.4(2019):2672-2689. |
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