On Bubble Rising in Countercurrent Flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F12%3A00393869" target="_blank" >RIV/67985858:_____/12:00393869 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1515/1542-6580.2995" target="_blank" >http://dx.doi.org/10.1515/1542-6580.2995</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/1542-6580.2995" target="_blank" >10.1515/1542-6580.2995</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On Bubble Rising in Countercurrent Flow

Popis výsledku v původním jazyce

Experiments were performed over a range of Reynolds number 60 <= Re <= 2200, We-ber number 1 <= We <= 14, Tadaki number 1 <= Ta <= 10, Eotvos number 1 <= Eo <= 22, and bubble aspect ratio 0.4 <= b/a <= 0.9. The bubble shape, bubble position and motion were investigated by direct observation of two plane projection of bubble by high speed camera. Typical sampling frequency was 150 fps. Relatively long records, (approximately 9000 frames per one bubble observation) allow us to get relevant statistics of treated data. Bubble aspect ratio has been determined from both projection planes. Dimensionless front area of observed bubble has been introduced as suitable parameter for correlation with Eotvos number. Model of static bubble and classical Wellek correlation were employed as asymptotes. Bubble rising velocity has been determined and tested for each single bubble with respect to liquid properties. Velocity data are plotted within the frame given by several theoretical predictions for pur

Název v anglickém jazyce

On Bubble Rising in Countercurrent Flow

Popis výsledku anglicky

Experiments were performed over a range of Reynolds number 60 <= Re <= 2200, We-ber number 1 <= We <= 14, Tadaki number 1 <= Ta <= 10, Eotvos number 1 <= Eo <= 22, and bubble aspect ratio 0.4 <= b/a <= 0.9. The bubble shape, bubble position and motion were investigated by direct observation of two plane projection of bubble by high speed camera. Typical sampling frequency was 150 fps. Relatively long records, (approximately 9000 frames per one bubble observation) allow us to get relevant statistics of treated data. Bubble aspect ratio has been determined from both projection planes. Dimensionless front area of observed bubble has been introduced as suitable parameter for correlation with Eotvos number. Model of static bubble and classical Wellek correlation were employed as asymptotes. Bubble rising velocity has been determined and tested for each single bubble with respect to liquid properties. Velocity data are plotted within the frame given by several theoretical predictions for pur

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

International Journal of Chemical Reactor Engineering

ISSN

1542-6580

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

2012

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

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Kód UT WoS článku

000305087500008

EID výsledku v databázi Scopus

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