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CFD simulation of a small bubble motion in 3D flow domain: effect of liquid density, viscosity and surface tension
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SYSNO ASEP 0572618 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title CFD simulation of a small bubble motion in 3D flow domain: effect of liquid density, viscosity and surface tension Author(s) Crha, Jakub (UCHP-M) RID, ORCID, SAI
Basařová, P. (CZ)
Růžička, Marek (UCHP-M) RID, ORCID, SAISource Title Chemical Papers. - : Springer - ISSN 0366-6352
Roč. 77, č. 7 (2023), s. 3979-3992Number of pages 14 s. Language eng - English Country DE - Germany Keywords single rising bubble ; level set method ; conservative ; surface tension ; two-phase flow 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 000952408000001 EID SCOPUS 85150182111 DOI 10.1007/s11696-023-02758-8 Annotation 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. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2024 Electronic address https://link.springer.com/article/10.1007/s11696-023-02758-8
Number of the records: 1