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Comparison of Two Solvers for Simulation of Single Bubble Rising Dynamics: COMSOL vs. Fluent
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SYSNO ASEP 0542383 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Comparison of Two Solvers for Simulation of Single Bubble Rising Dynamics: COMSOL vs. Fluent Author(s) Crha, Jakub (UCHP-M) RID, ORCID, SAI
Basařová, P. (CZ)
Růžička, Marek (UCHP-M) RID, ORCID, SAI
Kašpar, O. (CZ)
Zedníková, Mária (UCHP-M) RID, ORCID, SAIArticle number 452 Source Title Minerals. - : MDPI
Roč. 11, č. 5 (2021)Number of pages 15 s. Language eng - English Country CH - Switzerland Keywords rising bubble ; COMSOL ; level set ; multiphase Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical process engineering R&D Projects GA19-09518S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UCHP-M - RVO:67985858 UT WOS 000662388200001 EID SCOPUS 85104662150 DOI 10.3390/min11050452 Annotation The aim of this work was to study how two commercial CFD solvers, COMSOL Multiphysics and Ansys Fluent, can simulate the motion of a single rising bubble in a stagnant liquid. Simulations were performed for spherical or slightly deformed bubbles (Db = 0.6, 0.8, and 1.5 mm) rising in water or in propanol. A simple 2D axisymmetric approach was used. Calculated bubble terminal velocities and bubble shape deformations were compared to both experimental data and theoretical estimations. Solver Comsol Multiphysics was able to precisely calculate the movement of smaller and larger bubbles, due to the 2D rotational symmetry, better results were obtained for small spherical bubbles. The deformation of larger bubbles was calculated sufficiently. Solver Ansys Fluent failed to simulate the motion of small bubbles due to parasitic currents but allowed for modelling of the motion of larger bubbles. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2022 Electronic address https://www.mdpi.com/2075-163X/11/5/452
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