CFD simulation of a small bubble motion in 3D flow domain: effect of liquid density, viscosity and surface tension

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F23%3A00572618" target="_blank" >RIV/67985858:_____/23:00572618 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/23:43926971
Result on the web
<a href="https://link.springer.com/article/10.1007/s11696-023-02758-8" target="_blank" >https://link.springer.com/article/10.1007/s11696-023-02758-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11696-023-02758-8" target="_blank" >10.1007/s11696-023-02758-8</a>

Result language
angličtina
Original language name
CFD simulation of a small bubble motion in 3D flow domain: effect of liquid density, viscosity and surface tension
Original language description
The motion of spherical and slightly deformed bubbles rising rectilinearly in a stagnant liquid was numerically simulated in a fully three-dimensional domain using the CFD solver COMSOL Multiphysics. The interface was tracked by the built-in conservative Level set method on a fixed numerical grid. The purpose of this work was to study the single bubble motion in three industrially used liquids that differ significantly in surface tension, density, and viscosity. The motion of bubbles with diameters up to 1.6 mm was also studied experimentally using a high-speed camera. The data obtained together with the results of theoretical models for bubble motion were used for the validation of the simulation data. Using a 3D domain, very good agreement was obtained in both bubble shape deformations and bubble terminal velocity. The best results were achieved for propanol with low surface tension and low viscosity. In the case of high surface tension and low viscosity liquid (water), both the bubble deformation and the bubble velocity were slightly underestimated. In the case of glycerol (high surface tension and viscosity), the negligible bubble deformation is correctly calculated, but the velocity is again slightly underestimated.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20402 - Chemical process engineering

Project
<a href="/en/project/GA19-09518S" target="_blank" >GA19-09518S: Dynamics of unsteady phenomena in gas-liquid systems</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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