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On the applicability of the monodisperse medium model in numerical studies of flows in bubble columns
Chernyshev A. S.
1, Schmidt A. A.
1
1Ioffe Institute, St. Petersburg, Russia
Email: alexander.tchernyshev@mail.ioffe.ru
A comparison of the results of a numerical study of flow in a bubble column using monodisperse and polydisperse approaches was conducted. It was found from the differences of the obtained solutions that, as bubble sizes increase to Rb>1 mm (corresponding to a Reynolds number for a bubble Reb>400), both models are equivalent. It can be explained by a modification of the flow pattern associated with a change in the nature of the force interaction between the phases. Thus, efficient monodisperse medium models can be used to study flows with large bubbles. Keywords: multiphase flows, polydispersity, numerical modeling.
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