Vliv viskozity kapaliny na chování stoupající bubliny

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F07%3A00016287" target="_blank" >RIV/61989100:27360/07:00016287 - 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

Influence of liquid viscosity on rising bubble behavior

Popis výsledku v původním jazyce

Experimental study of single levitating bubbles is presented in the contribution. Long-term observation of the bubbles was done in a downward liquid flow. Influence of liquid viscosity on bubble behavior was evaluated. In order to obtain various viscosity values, water and 40wt% glycerol solutions were used as a liquid. Our research was concerned with medium-sized ellipsoidal bubbles. Bubble sizes were ranging from 50 to 400 mm3, with characteristic values 1 < Eo < 40, Re > 100. Path of the rising bubble is not a straight line, but it looks like a helix or a harmonic curve. Upper projection of bubble trajectory has an ellipsoidal shape. Bubble motion can be affected by a liquid rotation. The rotation is caused by stirring and is also influenced by Coriolis effect. To evaluate a significance of Coriolis effect, experiments with different stirring orientation were conducted.

Název v anglickém jazyce

Influence of liquid viscosity on rising bubble behavior

Popis výsledku anglicky

Experimental study of single levitating bubbles is presented in the contribution. Long-term observation of the bubbles was done in a downward liquid flow. Influence of liquid viscosity on bubble behavior was evaluated. In order to obtain various viscosity values, water and 40wt% glycerol solutions were used as a liquid. Our research was concerned with medium-sized ellipsoidal bubbles. Bubble sizes were ranging from 50 to 400 mm3, with characteristic values 1 < Eo < 40, Re > 100. Path of the rising bubble is not a straight line, but it looks like a helix or a harmonic curve. Upper projection of bubble trajectory has an ellipsoidal shape. Bubble motion can be affected by a liquid rotation. The rotation is caused by stirring and is also influenced by Coriolis effect. To evaluate a significance of Coriolis effect, experiments with different stirring orientation were conducted.

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F07%2F1110" target="_blank" >GA104/07/1110: Hydrodynamika a transportní jevy ve vícefázových soustavách: od mikroměřítka k makroměřítku</a><br>

Návaznosti

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

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

34th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-2640-5

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

53-56

Název nakladatele

Slovenská technická univerzita v Bratislave

Místo vydání

Bratislava

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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