Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019755 |
Phase exposure-dependent exchange | |
Ginn, T. R.1; Schreyer, L. G.2; Zamani, K.3 | |
2017 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Solutes and suspended material often experience delays during exchange between phases one of which may be moving. Consequently transport often exhibits combined effects of advection/dispersion, and delays associated with exchange between phases. Such processes are ubiquitous and include transport in porous/fractured media, watersheds, rivers, forest canopies, urban infrastructure systems, and networks. Upscaling approaches often treat the transport and delay mechanisms together, yielding macroscopic anomalous transport models. When interaction with the immobile phase is responsible for the delays, it is not the transport that is anomalous, but the lack of it, due to delays. We model such exchanges with a simple generalization of first-order kinetics completely independent of transport. Specifically, we introduce a remobilization rate coefficient that depends on the time in immobile phase. Memory-function formulations of exchange (with or without transport) can be cast in this framework, and can represent practically all time-nonlocal mass balance models including multirate mass transfer and its equivalent counterparts in the continuous time random walk and time-fractional advection dispersion formalisms, as well as equilibrium exchange. Our model can address delayed single-/multievent remobilizations as in delay-differential equations and periodic remobilizations that may be useful in sediment transport modeling. It is also possible to link delay mechanisms with transport if so desired, or to superpose an additional source of nonlocality through the transport operator. This approach allows for mechanistic characterization of the mass transfer process with measurable parameters, and the full set of processes representable by these generalized kinetics is a new open question. |
英文关键词 | mass transfer anomalous transport exposure time kinetics diffusion |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394911200037 |
WOS关键词 | MULTIRATE MASS-TRANSFER ; NON-FICKIAN TRANSPORT ; REACTIVE TRANSPORT ; MULTICOMPONENT MIXTURES ; HETEROGENEOUS AQUIFERS ; ADVECTIVE TRANSPORT ; POROUS-MEDIA ; RANDOM-WALKS ; SOLUTE TRANSPORT ; SUBSURFACE FLOW |
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/21966 |
专题 | 资源环境科学 |
作者单位 | 1.Washington State Univ, Dept Civil & Environm Engn, Pullman, WA 99164 USA; 2.Washington State Univ, Dept Math, Pullman, WA 99164 USA; 3.Univ Calif San Diego, Dept Mech & Aerosp Engn, San Diego, CA 92103 USA |
推荐引用方式 GB/T 7714 | Ginn, T. R.,Schreyer, L. G.,Zamani, K.. Phase exposure-dependent exchange[J]. WATER RESOURCES RESEARCH,2017,53(1). |
APA | Ginn, T. R.,Schreyer, L. G.,&Zamani, K..(2017).Phase exposure-dependent exchange.WATER RESOURCES RESEARCH,53(1). |
MLA | Ginn, T. R.,et al."Phase exposure-dependent exchange".WATER RESOURCES RESEARCH 53.1(2017). |
条目包含的文件 | 条目无相关文件。 |
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