Scaling of two-phase capillary pressure - saturation relationships: water-air and oil -air systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F03%3A00005897" target="_blank" >RIV/60460709:41210/03:00005897 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Scaling of two-phase capillary pressure - saturation relationships: water-air and oil -air systems

Popis výsledku v původním jazyce

Solution of various problems related to soil contamination by non-aquacous phase liquids (NAPL) require a konwledge of capilalry pressure-saturation relationships. In soil-water-air systems,this relationship is frequently denoted as the soil water retention curve. Results of measurements of capillary pressure-saturation relatinships for tow two-phase systems (air-wter and air-oil) in two soils (loamy sand and silt loam) are presented. A prediction technique based on a modification of Leverettś concept was applied. The suitability of the method was tested for loamy sand and silt loam by comparison of the scaling factors based on theoretical interfacial tension values with the actual scaling factors between two capillary pressure functions. The data measured shows that the scaling factors for soil-air-water and soil-air-oil consist of the rations of the interfacial tensions and the wetting angles of both liquids. Both parameters cannot easily be predicted and should be studied in detail.

Název v anglickém jazyce

Scaling of two-phase capillary pressure - saturation relationships: water-air and oil -air systems

Popis výsledku anglicky

Solution of various problems related to soil contamination by non-aquacous phase liquids (NAPL) require a konwledge of capilalry pressure-saturation relationships. In soil-water-air systems,this relationship is frequently denoted as the soil water retention curve. Results of measurements of capillary pressure-saturation relatinships for tow two-phase systems (air-wter and air-oil) in two soils (loamy sand and silt loam) are presented. A prediction technique based on a modification of Leverettś concept was applied. The suitability of the method was tested for loamy sand and silt loam by comparison of the scaling factors based on theoretical interfacial tension values with the actual scaling factors between two capillary pressure functions. The data measured shows that the scaling factors for soil-air-water and soil-air-oil consist of the rations of the interfacial tensions and the wetting angles of both liquids. Both parameters cannot easily be predicted and should be studied in detail.

Druh

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

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F02%2F0971" target="_blank" >GA103/02/0971: Numerické modelování transportu vícesložkové kontaminace ve vícefázovém prostředí nasycených a nenasycených zemin</a><br>

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

International Agrophysics

ISSN

0236-8722

e-ISSN

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Svazek periodika

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Číslo periodika v rámci svazku

17

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

6

Strana od-do

157-162

Kód UT WoS článku

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EID výsledku v databázi Scopus

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