Wall Shear Stress Induced by Taylor Bubbles in Inclined Flow Channels

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00392131" target="_blank" >RIV/67985858:_____/13:00392131 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/20134501089" target="_blank" >http://dx.doi.org/10.1051/epjconf/20134501089</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20134501089" target="_blank" >10.1051/epjconf/20134501089</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wall Shear Stress Induced by Taylor Bubbles in Inclined Flow Channels

Popis výsledku v původním jazyce

The motion of single air bubbles in flat channels is experimentally investigated. The electrodiffusion technique of near-wall flow diagnostics is applied to measure the wall shear stress distribution under large rising bubbles. The measurements are synchronized with the visual observation of bubble movement by a high-speed camera. The analysis of video records provides information on the bubble shape and terminal velocity. The experiments are carried out for three different channel configuration (with heights of 1.5, 4, and 8 mm), cover a wide range of channel inclination angles (from horizontal to vertical position), and dealing with both the bubbles in stagnant and in co-flowing water. The directionally sensitive, two-strip electrodiffusion probe isproved to be an effective tool to investigate the near-wall flow response to translating bubbles. It provides information not only on the wall shear rate distribution, but also detects the location of near-wall flow reversal, gives an est

Název v anglickém jazyce

Wall Shear Stress Induced by Taylor Bubbles in Inclined Flow Channels

Popis výsledku anglicky

The motion of single air bubbles in flat channels is experimentally investigated. The electrodiffusion technique of near-wall flow diagnostics is applied to measure the wall shear stress distribution under large rising bubbles. The measurements are synchronized with the visual observation of bubble movement by a high-speed camera. The analysis of video records provides information on the bubble shape and terminal velocity. The experiments are carried out for three different channel configuration (with heights of 1.5, 4, and 8 mm), cover a wide range of channel inclination angles (from horizontal to vertical position), and dealing with both the bubbles in stagnant and in co-flowing water. The directionally sensitive, two-strip electrodiffusion probe isproved to be an effective tool to investigate the near-wall flow response to translating bubbles. It provides information not only on the wall shear rate distribution, but also detects the location of near-wall flow reversal, gives an est

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

<a href="/cs/project/GAP101%2F12%2F0585" target="_blank" >GAP101/12/0585: Využití elektrodifúzních čidel pro studium proudění v mikrofluidních systémech</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

EPJ Web of Conferences

ISSN

2100-014X

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

2013

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000319932200089

EID výsledku v databázi Scopus

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