Three-phase contact expansion during the bubble adhesion on an inlcined plane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F12%3A43894164" target="_blank" >RIV/60461373:22340/12:43894164 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Three-phase contact expansion during the bubble adhesion on an inlcined plane

Popis výsledku v původním jazyce

The aim of this project is to describe the three-phase contact (TPC) line expansion. The influence of bubble size and type of surface bubble mobility are studied. Experiments were performed using a freely rising bubble method; bubbles with diameter up to1 mm were generated and the prism with an inclined plane with hydrophobic surface was used as a solid particle. The whole process was recorded using high-speed digital camera and images were evaluated using the image analysis software. Two mathematicalmodels were used for theoretical description. According to our results, the hydrodynamic model is not appropriate for the TPC line diameter calculation. The molecular-kinetic model gives better results and values of two adjustable parameters correspond to the physical assumptions. It was found out that the bubble size is the most important parameter influencing the TPC expansion whereas the influence of bubble surface mobility is surprisingly low.

Název v anglickém jazyce

Three-phase contact expansion during the bubble adhesion on an inlcined plane

Popis výsledku anglicky

The aim of this project is to describe the three-phase contact (TPC) line expansion. The influence of bubble size and type of surface bubble mobility are studied. Experiments were performed using a freely rising bubble method; bubbles with diameter up to1 mm were generated and the prism with an inclined plane with hydrophobic surface was used as a solid particle. The whole process was recorded using high-speed digital camera and images were evaluated using the image analysis software. Two mathematicalmodels were used for theoretical description. According to our results, the hydrodynamic model is not appropriate for the TPC line diameter calculation. The molecular-kinetic model gives better results and values of two adjustable parameters correspond to the physical assumptions. It was found out that the bubble size is the most important parameter influencing the TPC expansion whereas the influence of bubble surface mobility is surprisingly low.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP101%2F11%2F0806" target="_blank" >GAP101/11/0806: Vliv povrchově aktivních látek na proudění ve vícefázových systémech</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th International Congress of Chemical and Process Engineering

ISBN

978-80-905035-1-9

ISSN

—

e-ISSN

—

Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

Orgit, s.r.o.

Místo vydání

Praha

Místo konání akce

Prague

Datum konání akce

25. 8. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—