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ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
COMPUTATIONAL SIMULATION OF TAYLOR BUBBLES MOTION IN A STAGNANT LIQUID INSIDE A VERTICAL COLUMN
Submission Author:
José Luiz Horacio Faccini , RJ , Brazil
Co-Authors:
Francisco do Nascimento, Marcos Bertrand de Azevedo, José Luiz Horacio Faccini, Su Jian
Presenter: Francisco do Nascimento
doi://10.26678/ABCM.ENCIT2018.CIT18-0381
Abstract
In the present work, the motion of single Taylor bubbles in a vertical column of stagnant liquid was computationally simulated by using the open source software Open FOAM. The simulated column consists of a tube with 2 m in length and inner diameter of 0.024 m, sealed at the ends and partially filled with water. Experiments was also performed under these conditions in order to measure some bubble parameters. The computational simulation was performed solving a mathematical model formed by the isothermal, incompressible and laminar Navier-Stokes equations. In addition, it was assumed that the fluids are immiscible and no turbulence models were used. The equations were discretized by the VOF (volume of fluid) method, and solved using the Gauss iteration method. Numerical solutions were obtained for the bubble velocities and profiles which were compared with the experimental results and correlations from literature.
Keywords
Computational simulation; Taylor bubbles; Open FOAM; Stagnant Liquid Column; Vertical flow.
