CFD Simulation of a Sub-Millimeter Rising Bubble in a Stagnant Liquid

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F20%3A43921245" target="_blank" >RIV/60461373:22340/20:43921245 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/TPFM.2020.005" target="_blank" >https://doi.org/10.14311/TPFM.2020.005</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/tpfm.2020.005" target="_blank" >10.14311/tpfm.2020.005</a>

Result language
angličtina
Original language name
CFD Simulation of a Sub-Millimeter Rising Bubble in a Stagnant Liquid
Original language description
Hydrodynamics of the multiphase apparatus is strongly affected by fluids used in the process. One of the main quantities, which determine the hydrodynamic behaviour is the rising velocity of gaseous bubbles. This velocity can be determined easily in small scale apparatuses, but it can be much more challenging in industrial-scale devices. For that reason, mathematical modeling is used. COMSOL Multiphysics, finite element CFD solver, was used to describe the behaviour of the single bubble rising in aqueous solutions of ethanol and n-propanol. Aqueous solutions of low-carbon alcohols are extensively used in many multiphase chemical processes such as distillation, flotation and in multiphase reactors. Bubble velocities and shapes obtained from the simulation were compared to experimental and theoretical values. Two initial diameters of bubbles were used – 0.6 and 0.8 mm. Terminal velocities and shapes deformations obtained from COMSOL of 0.6 mm bubble were in an agreement with theoretical and experimental values.
Czech name
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Czech description
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Project
<a href="/en/project/GA19-09518S" target="_blank" >GA19-09518S: Dynamics of unsteady phenomena in gas-liquid systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings Topical Problems of Fluid Mechanics 2020
ISBN
978-80-87012-74-1
ISSN
2336-5781
e-ISSN
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Number of pages
7
Pages from-to
35
Publisher name
Ústav termomechaniky AV ČR, v.v.i.
Place of publication
Praha
Event location
Praha
Event date
Feb 19, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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