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DOI | 10.1029/2018WR022585 |
Dispersion and Mixing in Three-Dimensional Discrete Fracture Networks: Nonlinear Interplay Between Structural and Hydraulic Heterogeneity | |
Hyman, J. D.1; Jimenez-Martinez, J.2,3,4 | |
2018-05-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:5页码:3243-3258 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Switzerland |
英文摘要 | We investigate the relative impact of topological, geometric, and hydraulic heterogeneity on transport processes in three-dimensional fracture networks. Focusing on the two largest scales of heterogeneity in these systems, individual fracture and network structure, we compare transport through analogous structured and disordered three-dimensional fracture networks with varying degrees of hydraulic heterogeneity. For the moderate levels of hydraulic heterogeneity we consider, network structure is the dominant control of transport through the networks. Less dispersion, both longitudinal and transverse, is observed in structured networks than in disordered networks, due in part to the higher connectivity in the former, independent of the level of hydraulic heterogeneity. However, increases in dispersion with higher hydraulic heterogeneity are larger in the disordered networks than in the structured networks, thereby indicating that the interplay between structural and hydraulic heterogeneity is nonlinear. We propose a measure of disorder in fracture networks by computing the Shannon entropy of the spectrum of the Laplacian of a weighted graph representation of the networks, where the weights are given by a combination of topological, geometric, and hydraulic properties. This metric, as a relative indicator by comparison between two networks, is a first approach to the dispersion potential and "mixing capacity'' of a fracture network. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442351300002 |
WOS关键词 | HYBRID MORTAR METHOD ; ANOMALOUS TRANSPORT ; SOLUTE TRANSPORT ; INJECTION MODE ; TRACER TRANSPORT ; SINGLE FRACTURE ; POROUS-MEDIA ; SOLVING FLOW ; BOUNDARY ; SIMULATION |
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/20080 |
专题 | 资源环境科学 |
作者单位 | 1.Los Alamos Natl Lab, Computat Earth Sci Earth & Environm Sci Div, Los Alamos, NM 87545 USA; 2.EAWAG, Dept Water Resources & Drinking Water, Dubendorf, Switzerland; 3.Swiss Fed Inst Technol, Dept Civil Environm & Geomat Engn, Zurich, Switzerland; 4.Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM 87545 USA |
推荐引用方式 GB/T 7714 | Hyman, J. D.,Jimenez-Martinez, J.. Dispersion and Mixing in Three-Dimensional Discrete Fracture Networks: Nonlinear Interplay Between Structural and Hydraulic Heterogeneity[J]. WATER RESOURCES RESEARCH,2018,54(5):3243-3258. |
APA | Hyman, J. D.,&Jimenez-Martinez, J..(2018).Dispersion and Mixing in Three-Dimensional Discrete Fracture Networks: Nonlinear Interplay Between Structural and Hydraulic Heterogeneity.WATER RESOURCES RESEARCH,54(5),3243-3258. |
MLA | Hyman, J. D.,et al."Dispersion and Mixing in Three-Dimensional Discrete Fracture Networks: Nonlinear Interplay Between Structural and Hydraulic Heterogeneity".WATER RESOURCES RESEARCH 54.5(2018):3243-3258. |
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