Droplets breakage in flow conditions of an agitated tank

0496735 - ÚH 2022 CZ eng C - Conference Paper (international conference)
Kysela, Bohuš - Konfršt, Jiří - Chára, Zdeněk - Šulc, R. - Kotek, M.
Droplets breakage in flow conditions of an agitated tank.
Proceedings of the International conference Experimental Fluid Mechanics 2018. Prague, 2018 - (Dančová, J.; Novosád, J.), s. 350-353
[EFM18 - Experimental Fluid Mechanics 2018. Prague (CZ), 13.11.2018-16.11.2018]
R&D Projects: GA ČR GA16-20175S
Institutional support: RVO:67985874
Keywords : immiscible liquid dispersion * mixing process * droplet size distribution
OECD category: Fluids and plasma physics (including surface physics)

Production of two immiscible liquid dispersions used in chemical or metallurgical industry is usually performed by a mixing process. The droplets of secondary liquid are predominantly dispersed by the shear flow forces to the primary liquid. It is well known, that the real droplet size distribution is limited by the physical properties of both liquids, the acting forces and residence time. This phenomenon is investigated experimentally or numerically simulated by several methods. In this study, the simplified mixing test case was studied. The single droplet dispergation was simulated using finite volume method and multiphase VOF (Volume-of-Fluid) model. The capability of the local remeshing method was investigated. The increase of calculation performance and the phases mass imbalance during automatic mesh refinement is summarized.
Permanent Link: http://hdl.handle.net/11104/0294364