Case-study of problems encountered at small bubble formation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F04%3A00010844" target="_blank" >RIV/61989100:27360/04:00010844 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Case-study of problems encountered at small bubble formation
Original language description
To study important hydrodynamic interactions between bubbles and bubble-particle collisions, at intermediate Reynolds number, one has to have a possibility to produce bubbles of required parameters (size, formation frequency, spatial arrangement, spacing, etc.). In the literature, there is not much results published that would cover this topic. Therefore, we tried to produce bubbles with Re in the range of 101 - 102 from capillaries, based on the spontaneous bubble formation dynamics. To our surprise, we have learned that the problem is far from being trivial. We were not be able to set the experimental conditions to generate e.g. bubbles of Re = 125 in groups of five at center-center spacing ten bubble radii, arranged in a vertical line. Here we report some specific drawbacks that we have encountered.
Czech name
Problémy vytváření malých bublinek
Czech description
Problémy vytváření malých bublinek

Project
<a href="/en/project/GA104%2F04%2F0827" target="_blank" >GA104/04/0827: Multi-scale hydrodynamics of gas-liquid reactors</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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