Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026430 |
Numerical Study of Solute Transport in Heterogeneous Beach Aquifers Subjected to Tides | |
Geng, Xiaolong1; Boufadel, Michel C.1; Rajaram, Harihar2; Cui, Fangda1; Lee, Kenneth3; An, Chunjiang4 | |
2020-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH
![]() |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | A numerical study, based on a variably saturated groundwater flow model within a Monto Carlo framework, was conducted to investigate flow and solute transport in a heterogeneous beach aquifer subjected to tides. The numerical simulations were conducted based on our previous tracer experiments performed in a laboratory beach. Heterogeneity is assumed to be multifractal generated using the Universal Multifractal model. Our results show that heterogeneity greatly alters temporal and spatial evolution of the tracer plume migrating in the beach. The spreading coefficient of the plume shows very dynamic response to tides; it increases as the tidally driven recirculation cell overlaps with the plume and decreases as the recirculation cell moves far from the plume with tides. Descriptive statistics suggests that heterogeneity enhances spreading of the plume in the beach in an ensemble sense along with significant spatial and temporal variation. Due to heterogeneity, high spots of the pore water velocity are formed within the recirculation cell, creating transient preferential flow paths in the beach in response to tides. Contours of the Okubo-Weiss (OW) parameter show that coupling with tides, heterogeneity creates vorticity-dominated flow regions and also expands strain-dominated flow regions more downward, indicating complex local-scale mixing in the beach, compared to corresponding homogeneous case. Geologic heterogeneity also alters the spatial extent of the recirculating cell and induces highly variable transit time along the recirculating flow paths. The results provide insights into effects of geologic heterogeneity on seawater-groundwater mixing and associated solute transport processes in tidally influenced coastal |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000538000800010 |
WOS关键词 | SUBMARINE GROUNDWATER DISCHARGE ; TIDAL FRESH-WATER ; SEAWATER INTRUSION ; CONDITIONAL SIMULATION ; HYDRAULIC CONDUCTIVITY ; BREAKING WAVES ; STEADY-STATE ; FLOW ; DYNAMICS ; OIL |
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/280593 |
专题 | 资源环境科学 |
作者单位 | 1.New Jersey Inst Technol, Dept Civil & Environm Engn, Newark, NJ 07102 USA; 2.Johns Hopkins Univ, Dept Environm Hlth & Engn, Baltimore, MD USA; 3.Bedford Inst Oceanog, Dept Fisheries & Oceans, Dartmouth, NS, Canada; 4.Concordia Univ, Dept Bldg Civil & Environm Engn, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | Geng, Xiaolong,Boufadel, Michel C.,Rajaram, Harihar,et al. Numerical Study of Solute Transport in Heterogeneous Beach Aquifers Subjected to Tides[J]. WATER RESOURCES RESEARCH,2020,56(3). |
APA | Geng, Xiaolong,Boufadel, Michel C.,Rajaram, Harihar,Cui, Fangda,Lee, Kenneth,&An, Chunjiang.(2020).Numerical Study of Solute Transport in Heterogeneous Beach Aquifers Subjected to Tides.WATER RESOURCES RESEARCH,56(3). |
MLA | Geng, Xiaolong,et al."Numerical Study of Solute Transport in Heterogeneous Beach Aquifers Subjected to Tides".WATER RESOURCES RESEARCH 56.3(2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论