Plovající částice; snížení menisku; pórovitý povrch; kapilarita

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F06%3A00017290" target="_blank" >RIV/60461373:22340/06:00017290 - 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

The meniscus depression of a porous spherical particle at the three phase contact line

Popis výsledku v původním jazyce

The description of the processes at the three phase contact line is very important for the study of elementary steps in flotation. When a hydrophobic particle is attached to a gas-liquid interface, it is influenced by a number of forces, including surface tension, capillary and buoyancy forces on one hand and the particle weight on other. In case of porous particles must be also considered capillary forces acting in the porous surface. The meniscus depression at the three phase contact line is then determined by the resultant force. The meniscus depression of the floating particle was studied using image analysis method. The depression was studied for spherical polystyrene particles of diameters from 0.1mm to 3mm. We compared the experimental values ofmeniscus depression with the data calculated using theoretical and semi-empirical models. Also the theoretical description of forces acting on the floating spherical porous particle is given. We found that the existence of pores and surf

Název v anglickém jazyce

The meniscus depression of a porous spherical particle at the three phase contact line

Popis výsledku anglicky

The description of the processes at the three phase contact line is very important for the study of elementary steps in flotation. When a hydrophobic particle is attached to a gas-liquid interface, it is influenced by a number of forces, including surface tension, capillary and buoyancy forces on one hand and the particle weight on other. In case of porous particles must be also considered capillary forces acting in the porous surface. The meniscus depression at the three phase contact line is then determined by the resultant force. The meniscus depression of the floating particle was studied using image analysis method. The depression was studied for spherical polystyrene particles of diameters from 0.1mm to 3mm. We compared the experimental values ofmeniscus depression with the data calculated using theoretical and semi-empirical models. Also the theoretical description of forces acting on the floating spherical porous particle is given. We found that the existence of pores and surf

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F05%2F2566" target="_blank" >GA104/05/2566: Hydrodynamické interakce bublin a částic ve flotačním procesu</a><br>

Návaznosti

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

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Advances in Fluid Mechanics VI

ISSN

1746-4471

e-ISSN

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Svazek periodika

6

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

643-652

Kód UT WoS článku

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EID výsledku v databázi Scopus

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