Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023607 |
A Flexible Temporal Velocity Model for Fast Contaminant Transport Simulations in Porous Media | |
Delgoshaie, Amir H.1; Glynn, Peter W.2; Jenny, Patrick3; Tchelepi, Hamdi A.1 | |
2018-10-01 | |
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:10页码:8500-8513 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Switzerland |
英文摘要 | In subsurface aquifers, dispersion of contaminants is highly affected by the heterogeneity of the hydraulic conductivity field. As an alternative to Monte Carlo simulations on probable conductivity fields, stochastic velocity processes have been introduced to assess the uncertainty in the transport of contaminants. In continuum-scale simulations, discrete velocity models (such as correlated continuous time random walk) focus on modeling plume dispersion in the longitudinal direction. There are alternative continuous velocity processes (such as the polar Markovian velocity process [PMVP]) that are able to accurately model transport in both longitudinal and transverse directions. Importantly, the PMVP model correctly predicts the limited spreading of the ensemble contaminant plume in the transverse direction. However, the stochastic differential equations used in the PMVP model have specific drift and diffusion functions that are designed for the exponential correlation structure. In this paper, a new discrete velocity process is described that is applicable to modeling transport in two-dimensional conductivity fields for both Gaussian and exponential correlation structures. This method is simple, in a sense that it does not require modeling the functional form of the drift and diffusion functions. The new method is validated against Monte Carlo simulations for both correlation structures with high variances of log conductivity. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000450726000074 |
WOS关键词 | ANOMALOUS TRANSPORT ; SOLUTE TRANSPORT ; UNCERTAINTY QUANTIFICATION ; HETEROGENEOUS AQUIFERS ; DISPERSION |
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/21278 |
专题 | 资源环境科学 |
作者单位 | 1.Stanford Univ, Dept Energy Resources Engn, Stanford, CA 94305 USA; 2.Stanford Univ, Dept Management Sci & Engn, Stanford, CA 94305 USA; 3.Swiss Fed Inst Technol, Inst Fluid Dynam, Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Delgoshaie, Amir H.,Glynn, Peter W.,Jenny, Patrick,et al. A Flexible Temporal Velocity Model for Fast Contaminant Transport Simulations in Porous Media[J]. WATER RESOURCES RESEARCH,2018,54(10):8500-8513. |
APA | Delgoshaie, Amir H.,Glynn, Peter W.,Jenny, Patrick,&Tchelepi, Hamdi A..(2018).A Flexible Temporal Velocity Model for Fast Contaminant Transport Simulations in Porous Media.WATER RESOURCES RESEARCH,54(10),8500-8513. |
MLA | Delgoshaie, Amir H.,et al."A Flexible Temporal Velocity Model for Fast Contaminant Transport Simulations in Porous Media".WATER RESOURCES RESEARCH 54.10(2018):8500-8513. |
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