Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026000 |
Adaptive Multirate Mass Transfer (aMMT) Model: A New Approach to Upscale Regional-Scale Transport Under Transient Flow Conditions | |
Guo, Zhilin1,2; Henri, Christopher V.2; Fogg, Graham E.2; Zhang, Yong3; Zheng, Chunmiao1 | |
2020-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The long-term evaluation of regional-scale groundwater quality needs efficient upscaling methods for transient flow. Upscaling techniques, such as the Multirate Mass Transfer (MRMT) method with constant upscaling parameters, have been used for transport with steady-state flow, yet the upscaling parameters (i.e., rate coefficients) may be time dependent. This study proposed and validated an adaptive MRMT (aMMT) method by allowing the mass transfer coefficients in MRMT to change with the flow field. Advective-dispersive contaminant transport simulated in a 3-D heterogeneous medium was used as a reference solution. Equivalent transport under homogeneous flow conditions was evaluated by applying the MRMT and aMMT models for upscaling. The relationship between mass transfer coefficients and flow rates was fitted under steady-state flow driven by various hydraulic gradients. A power law relationship was obtained, which was then used to update the mass transfer coefficients in each stress period under transient flow conditions in the aMMT method. Results indicated that for advection-dominated transport, both the MRMT and aMMT methods can upscale the anomalous transport dynamics affected by subgrid heterogeneity under transient flow conditions. Whereas for diffusion-dominated systems, the MRMT model failed to capture the tails of tracer breakthrough curves after the boundary condition changed, but the results from the aMMT model were significantly improved. However, if the overall flow direction changed, both MRMT and aMMT failed to represent the breakthrough curve tail generated by the heterogeneous system. The results point toward a promising path for upscaling transport in complex aquifers with transient flow. |
英文关键词 | aMMT MRMT upscaling transport transient flow |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535672800055 |
WOS关键词 | ANOMALOUS CHEMICAL-TRANSPORT ; SOLUTE TRANSPORT ; MACRODISPERSION EXPERIMENT ; HETEROGENEOUS AQUIFERS ; CONTAMINANT TRANSPORT ; BREAKTHROUGH CURVES ; MATRIX DIFFUSION ; TIME BEHAVIOR ; POROUS-MEDIA ; GROUNDWATER |
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/280505 |
专题 | 资源环境科学 |
作者单位 | 1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen, Peoples R China; 2.Univ Calif Davis, Hydrol Sci, Davis, CA 95616 USA; 3.Univ Alabama, Dept Geol Sci, Tuscaloosa, AL USA |
推荐引用方式 GB/T 7714 | Guo, Zhilin,Henri, Christopher V.,Fogg, Graham E.,et al. Adaptive Multirate Mass Transfer (aMMT) Model: A New Approach to Upscale Regional-Scale Transport Under Transient Flow Conditions[J]. WATER RESOURCES RESEARCH,2020,56(2). |
APA | Guo, Zhilin,Henri, Christopher V.,Fogg, Graham E.,Zhang, Yong,&Zheng, Chunmiao.(2020).Adaptive Multirate Mass Transfer (aMMT) Model: A New Approach to Upscale Regional-Scale Transport Under Transient Flow Conditions.WATER RESOURCES RESEARCH,56(2). |
MLA | Guo, Zhilin,et al."Adaptive Multirate Mass Transfer (aMMT) Model: A New Approach to Upscale Regional-Scale Transport Under Transient Flow Conditions".WATER RESOURCES RESEARCH 56.2(2020). |
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