BUBBLE RISING IN COUNTERCURRENT FLOW

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F12%3A86079533" target="_blank" >RIV/61989100:27360/12:86079533 - 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

BUBBLE RISING IN COUNTERCURRENT FLOW

Popis výsledku v původním jazyce

Present paper is focused on experimental study of bubbles levitating in countercurrent downward diverging flow. Air bubbles with volumes 10 mm3<V<1000 mm3 were studied in liquids with different properties (density, viscosity, surface tension, and conductivity) namely water, glycerol solutions, electrolyte solutions of various concentrations, and butyl alcohol. The bubble shape, position and motion have been investigated by quite long direct observation of two plane projection of bubble by high speed camera. Typical sampling frequency was 150 Hz. Relatively long records, nearly one minute (approximately 9000 frames per one bubble observation), allow us to get relevant statistics of treated data. Parameters such bubble shape aspect ratio, determined fromboth projection planes, and rising velocity was determined and tested for each single bubble with respect of liquid properties. Obtained results are transformed to dimensionless form. New correlation for bubble rising velocity data is pr

Název v anglickém jazyce

BUBBLE RISING IN COUNTERCURRENT FLOW

Popis výsledku anglicky

Present paper is focused on experimental study of bubbles levitating in countercurrent downward diverging flow. Air bubbles with volumes 10 mm3<V<1000 mm3 were studied in liquids with different properties (density, viscosity, surface tension, and conductivity) namely water, glycerol solutions, electrolyte solutions of various concentrations, and butyl alcohol. The bubble shape, position and motion have been investigated by quite long direct observation of two plane projection of bubble by high speed camera. Typical sampling frequency was 150 Hz. Relatively long records, nearly one minute (approximately 9000 frames per one bubble observation), allow us to get relevant statistics of treated data. Parameters such bubble shape aspect ratio, determined fromboth projection planes, and rising velocity was determined and tested for each single bubble with respect of liquid properties. Obtained results are transformed to dimensionless form. New correlation for bubble rising velocity data is pr

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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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)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

12th International Conference on MULTIPHASE FLOW IN INDUSTRIAL PLANTS

ISBN

978-88-89677-22-3

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

121-132

Název nakladatele

Italian Federation Of Industrial Plant Engineering

Místo vydání

Řím

Místo konání akce

Napoli

Datum konání akce

21. 9. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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