Open AccessPolydisperse bubble flows: a study of the bubble cloud evolution by CFD methods
Author(s) -
А. С. Чернышев,
Alexander Schmidt
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/4/044020
Subject(s) - bubble , mechanics , computational fluid dynamics , flow (mathematics) , multiphase flow , euler's formula , physics , mathematics , mathematical analysis
The evolution of a polydisperse bubble cloud is analyzed by means of computational fluid dynamics. Gravity-driven bubble flows in a column with a circular cross-section as well as a downward flow in a long vertical pipe are numerically investigated. A method employed in the simulations is based on the Euler-Euler description of the multiphase medium. An inhomogeneous multiple-size group (MUSIG) model is used to describe the bubble size distribution. The formulated approach provides detailed description of the bubble flow structure including variation of the bubble size distribution.