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Using a Dynamic and Constant Mesh in Numerical Simulation of the Free-Rising Bubble

Laboratory for Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, SI-1000 Ljubljana, Slovenia
Fluids 2019, 4(1), 38; https://doi.org/10.3390/fluids4010038
Received: 7 February 2019 / Revised: 21 February 2019 / Accepted: 26 February 2019 / Published: 27 February 2019
(This article belongs to the Special Issue Coupled Flow and Heat or Mass Transport)
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Abstract

A two-phase bubbly flow is often found in the process industry. For the efficient operation of such devices, it is important to know the details of the flow. The paper presents a numerical simulation of the rising bubble in a stagnant liquid column. The interFOAM solver from the open source Computational Fluid Dynamics (CFD) toolbox OpenFOAM was used to obtain the necessary data. The constant and dynamic computational grids were used in the numerical simulation. The results of the calculation were compared with the measured values. As expected, by using the dynamic mesh, the bubble trajectory was closer to the experimental results due to the more detailed description of the gas–liquid interface. View Full-Text
Keywords: two-phase flow; free-rising bubble; CFD; volume of fluid (VOF); constant and dynamic mesh two-phase flow; free-rising bubble; CFD; volume of fluid (VOF); constant and dynamic mesh
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Rek, Z. Using a Dynamic and Constant Mesh in Numerical Simulation of the Free-Rising Bubble. Fluids 2019, 4, 38.

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