Three-Dimensional Numerical Analysis of Water Flow Affected by Entrapped Air: Application of Noninvasive Imaging Techniques

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00201819" target="_blank" >RIV/68407700:21110/13:00201819 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.2136/vzj2012.0078" target="_blank" >http://dx.doi.org/10.2136/vzj2012.0078</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2136/vzj2012.0078" target="_blank" >10.2136/vzj2012.0078</a>

Result language

angličtina

Original language name

Three-Dimensional Numerical Analysis of Water Flow Affected by Entrapped Air: Application of Noninvasive Imaging Techniques

Original language description

Recurrent ponded infiltration experiments on undisturbed samples of coarse sandy loam have revealed a significant flow instability characterized by a decrease in the steady-state flow rate of the second infiltration run, conducted into wet soil, comparedwith the first infiltration run, conducted into drier soil. It has been hypothesized that this decrease was caused by air entrapment during the second run, with subsequent blocking of the preferential pathways. In this study, entrapped air distributionand its impact on water flow was studied through a novel combination of magnetic resonance (MR) imaging and numerical modeling. An undisturbed sample of coarse sandy loam was subject to recurrent ponded infiltration while being monitored by MR. Internalstructure of the soil sample was visualized by x-ray computed tomography (CT). A parallel version of the three-dimensional water flow model based on Richards? equation was used to simulate water flow through the heterogeneous soil sample.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

<a href="/en/project/GA103%2F08%2F1552" target="_blank" >GA103/08/1552: Water flow and solute transport in porous media with the presence of discontinuous gas phase</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Vadose Zone Journal

ISSN

1539-1663

e-ISSN

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Volume of the periodical

12

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

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UT code for WoS article

000317713300026

EID of the result in the Scopus database

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