Bubble formation and swarm dynamics: Effect of increased viscosity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00584833" target="_blank" >RIV/67985858:_____/24:00584833 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/24:43930593

Výsledek na webu

<a href="https://hdl.handle.net/11104/0352652" target="_blank" >https://hdl.handle.net/11104/0352652</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ces.2024.119831" target="_blank" >10.1016/j.ces.2024.119831</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bubble formation and swarm dynamics: Effect of increased viscosity

Popis výsledku v původním jazyce

Aiming to make the bridge between the studies of bubble behaviour as single bubble and in bubble columns, the characteristics of bubbles in an aerated column with a low gas content were investigated: bubbles formed at one single 0.5 mm orifice in a partially sparged small lab-scale bubble column were visualized by highspeed camera. The formation process and bubble behaviour at heights of 20 and 40 cm above the orifice were investigated. The bubble size, deformation and velocity were investigated in aqueous glycerol solutions (1 to 10 mPa.s). Average characteristics of the bubbles in swarms were obtained by statistical data processing. It was found that, the bubble formation mechanism governs the size and velocity of bubbles in swarms and that, in the investigated range, viscosity has little effect on the bubble behaviour. Individual bubbles in the swarm differ significantly in their size, shape, and velocity without correlation between these quantities.

Název v anglickém jazyce

Bubble formation and swarm dynamics: Effect of increased viscosity

Popis výsledku anglicky

Aiming to make the bridge between the studies of bubble behaviour as single bubble and in bubble columns, the characteristics of bubbles in an aerated column with a low gas content were investigated: bubbles formed at one single 0.5 mm orifice in a partially sparged small lab-scale bubble column were visualized by highspeed camera. The formation process and bubble behaviour at heights of 20 and 40 cm above the orifice were investigated. The bubble size, deformation and velocity were investigated in aqueous glycerol solutions (1 to 10 mPa.s). Average characteristics of the bubbles in swarms were obtained by statistical data processing. It was found that, the bubble formation mechanism governs the size and velocity of bubbles in swarms and that, in the investigated range, viscosity has little effect on the bubble behaviour. Individual bubbles in the swarm differ significantly in their size, shape, and velocity without correlation between these quantities.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GA19-09518S" target="_blank" >GA19-09518S: Dynamika nestacionárních dějů v plyno-kapalinových soustavách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

1873-4405

Svazek periodika

288

Číslo periodika v rámci svazku

APR 15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

119831

Kód UT WoS článku

001182248800001

EID výsledku v databázi Scopus

2-s2.0-85184614783