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Centrifugal Modeling and Validation of Solute Transport within Unsaturated Zone

State Key Laboratory of Nuclear Resources and Environment and School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
Water 2019, 11(3), 610; https://doi.org/10.3390/w11030610
Received: 29 January 2019 / Revised: 21 March 2019 / Accepted: 21 March 2019 / Published: 24 March 2019
(This article belongs to the Section Water Resources Management and Governance)
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Abstract

Numerical modeling has been adopted to assess the feasibility of centrifugal simulation of solute transport within the unsaturated zone. A numerical model was developed to study the centrifugal simulation of nonreactive, adsorption, radionuclide, and reactive solutes. The results showed that it is feasible to conduct centrifugal experiments for nonreactive solute transport. For the solute transport containing physical processes or chemical reactions, if the reaction is very rapid or slow, it is feasible to conduct centrifugal experiments. For the solute transport with a product B generated, if the reaction is relatively slow, the centrifugal prediction of solute is suitable. The centrifugal prediction of solute A matches the prototype quite well, but the prediction of B is in poor quality. If B is the focus, it is not feasible to conduct centrifugal experiments; but if B is not important, the centrifugal modeling is suitable. This has significant implications for the centrifugal modeling application to solute transport simulation within the unsaturated zone. View Full-Text
Keywords: solute transport; unsaturated zone; centrifugal experiment modeling; numerical model solute transport; unsaturated zone; centrifugal experiment modeling; numerical model
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Qin, H. Centrifugal Modeling and Validation of Solute Transport within Unsaturated Zone. Water 2019, 11, 610.

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