Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR024953 |
Upscaling of Regional Scale Transport Under Transient Conditions: Evaluation of the Multirate Mass Transfer Model | |
Guo, Zhilin1,2; Fogg, Graham E.1; Henri, Christopher, V1 | |
2019-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:7页码:5301-5320 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Regional scale transport models are needed to support the long-term evaluation of groundwater quality and to develop management strategies aiming to prevent serious groundwater degradation. The purpose of this study is to evaluate the capacity of a previously developed upscaling approach to adequately describe the main solute transport processes, including the capture of late-time tails under changing boundary conditions. Potential factors that impact the performance of upscaling methods, including temporal variations in mass transfer rates and mass distributions, were investigated. Advective-dispersive contaminant transport in a 3-D heterogeneous domain was simulated and used as a reference solution. The equivalent transport under homogeneous flow conditions was then evaluated by applying the multirate mass transfer (MRMT) model. The random walk particle tracking method was used to solve the solute transport for heterogeneous and homogeneous MRMT scenarios under steady state and transient conditions. The results indicate that the MRMT model can capture the tails satisfactorily for plumes transported with ambient steady state flow fields at all studied scales using the same parameters. However, when the boundary conditions change in either local, plume, or regional scale, the mass transfer model calibrated for transport under steady state conditions cannot accurately reproduce the tailings observed for the heterogeneous scenario. The deteriorating impacts of transient boundary conditions on the upscaled model are more significant for regions where the flow fields are dramatically affected, which highlights the poor applicability of the MRMT approach for complex field settings. This finding also has implications for the suitability of other potential upscaling approaches. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000481444700008 |
WOS关键词 | SOLUTE TRANSPORT ; HYDRAULIC CONDUCTIVITY ; HETEROGENEOUS FORMATIONS ; CONTAMINANT MIGRATION ; MATRIX DIFFUSION ; POROUS-MEDIA ; PLUME-SCALE ; AQUIFER ; DISPERSION ; PERMEABILITY |
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/184830 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Calif Davis, Land Air & Water Resources, Davis, CA 95616 USA; 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Zhilin,Fogg, Graham E.,Henri, Christopher, V. Upscaling of Regional Scale Transport Under Transient Conditions: Evaluation of the Multirate Mass Transfer Model[J]. WATER RESOURCES RESEARCH,2019,55(7):5301-5320. |
APA | Guo, Zhilin,Fogg, Graham E.,&Henri, Christopher, V.(2019).Upscaling of Regional Scale Transport Under Transient Conditions: Evaluation of the Multirate Mass Transfer Model.WATER RESOURCES RESEARCH,55(7),5301-5320. |
MLA | Guo, Zhilin,et al."Upscaling of Regional Scale Transport Under Transient Conditions: Evaluation of the Multirate Mass Transfer Model".WATER RESOURCES RESEARCH 55.7(2019):5301-5320. |
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