Water and Entrapped Air Redistribution in Heterogeneous Sand Sample: Quantitative Neutron Imaging of the Process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00227295" target="_blank" >RIV/68407700:21110/15:00227295 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/15:00227295

Výsledek na webu

<a href="http://onlinelibrary.wiley.com/doi/10.1002/2014WR015432/abstract" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1002/2014WR015432/abstract</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/2014WR015432" target="_blank" >10.1002/2014WR015432</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Water and Entrapped Air Redistribution in Heterogeneous Sand Sample: Quantitative Neutron Imaging of the Process

Popis výsledku v původním jazyce

Saturated flow in soil with the occurrence of preferential flow often exhibits temporal changes of saturated hydraulic conductivity even during the time scale of a single infiltration event. These effects, observed in a number of experiments done mainlyon heterogeneous soils, are often attributed to the changing distribution of water and air in the sample. We have measured the variation of the flow rates during the steady state stage of the constant head ponded infiltration experiment conducted on a packed sample composed of three different grades of sand. The experiment was monitored by quantitative neutron imaging, which provided information about the spatial distribution of water in the sample. Measurements were taken during (i) the initial stagesof infiltration by neutron radiography and (ii) during the steady state flow by neutron tomography. A gradual decrease of the hydraulic conductivity has been observed during the first 4 h of the infiltration event. A series of neutron tom

Název v anglickém jazyce

Water and Entrapped Air Redistribution in Heterogeneous Sand Sample: Quantitative Neutron Imaging of the Process

Popis výsledku anglicky

Saturated flow in soil with the occurrence of preferential flow often exhibits temporal changes of saturated hydraulic conductivity even during the time scale of a single infiltration event. These effects, observed in a number of experiments done mainlyon heterogeneous soils, are often attributed to the changing distribution of water and air in the sample. We have measured the variation of the flow rates during the steady state stage of the constant head ponded infiltration experiment conducted on a packed sample composed of three different grades of sand. The experiment was monitored by quantitative neutron imaging, which provided information about the spatial distribution of water in the sample. Measurements were taken during (i) the initial stagesof infiltration by neutron radiography and (ii) during the steady state flow by neutron tomography. A gradual decrease of the hydraulic conductivity has been observed during the first 4 h of the infiltration event. A series of neutron tom

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Water Resources Research

ISSN

0043-1397

e-ISSN

—

Svazek periodika

51

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

1359-1371

Kód UT WoS článku

000351401200033

EID výsledku v databázi Scopus

2-s2.0-84924655716