Dynamics of rising bubbles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F01%3A00001143" target="_blank" >RIV/61989100:27360/01:00001143 - 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

Dynamics of rising bubbles

Popis výsledku v původním jazyce

First step to the understanding processes in bubbled liquids is investigation of single bubble behavior. Shape of a small bubble and its rising velocity is time independent in simple cases. However, the size and velocity exhibit periodic oscillation forlarger bubbles and in limiting case there occurs chaotic variation of velocity and shape leading sometimes to the bubble breakup. This paper summarizes existing knowledge on rising bubbles with accent to low viscosity liquids and to the medium size spheroid bubbles, which are typical results of breakup and coalescence in a bubble swarm. When coalescence can be neglected, the bubble size is controlled by breakup. Recent data on the process of single bubble breakup were represented by simple power-law correlation of bubble half-life. Mathematical model of a cascade of bubble breakup to two equal-size parts is represented by a set of ordinary differential equations, which somewhat resembles the model of consecutive reactions of first order

Název v anglickém jazyce

Dynamics of rising bubbles

Popis výsledku anglicky

First step to the understanding processes in bubbled liquids is investigation of single bubble behavior. Shape of a small bubble and its rising velocity is time independent in simple cases. However, the size and velocity exhibit periodic oscillation forlarger bubbles and in limiting case there occurs chaotic variation of velocity and shape leading sometimes to the bubble breakup. This paper summarizes existing knowledge on rising bubbles with accent to low viscosity liquids and to the medium size spheroid bubbles, which are typical results of breakup and coalescence in a bubble swarm. When coalescence can be neglected, the bubble size is controlled by breakup. Recent data on the process of single bubble breakup were represented by simple power-law correlation of bubble half-life. Mathematical model of a cascade of bubble breakup to two equal-size parts is represented by a set of ordinary differential equations, which somewhat resembles the model of consecutive reactions of first order

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%2F01%2F0547" target="_blank" >GA104/01/0547: Nestabilita homogenního tokového režimu v probublávaných kolonách</a><br>

Návaznosti

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

Rok uplatnění

2001

Kód důvěrnosti údajů

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

Název statě ve sborníku

28th International Conference SSCHE

ISBN

80-227-1533-6

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

72

Název nakladatele

Slovak Society of Chemical Engineering,

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

21. 5. 2001

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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