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- W2775264572 abstract "A study on the fluid dynamics of two-phase flow in a Dissolved Air Flotation (DAF) unit using CFD − Computational Fluid Dynamics is presented. An evaluation of different approaches to the multiphase, turbulence and drag models, as well as different boundary conditions to model the surface of the DAF tank were performed. The Grid Convergence Index (GCI) method was applied to obtain the grid discretization error and define the best mesh refinement. For the evaluation of the multiphase models, simulations were performed with three different microbubble sizes: 30, 50 and 70 μm. Numerical simulations were compared with data obtained from the literature. The results indicated that the Eulerian approach and the realizable κ-ε turbulence model were the most adequate modeling to represent the flow behavior inside the DAF tank. The degassing boundary condition for free surface resulted in better results when compared with the non-slip wall condition. The results also indicate a low influence of the drag model on the hydrodynamics for the evaluated conditions." @default.
- W2775264572 created "2017-12-22" @default.
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- W2775264572 date "2018-02-01" @default.
- W2775264572 modified "2023-09-30" @default.
- W2775264572 title "Evaluation of multiphase CFD models for Dissolved Air Flotation (DAF) process" @default.
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- W2775264572 doi "https://doi.org/10.1016/j.colsurfa.2017.12.015" @default.
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