Title:
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An eulerian-lagrangian modeling of fluidized bed
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Author:
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Zhang, Hao; Yuan-Qiang, Tan; Dong-Min, Yang; Trias Miquel, Francesc Xavier; Sheng, Yong; Oliva Llena, Asensio
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
Abstract:
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The particle motions in a fluidized bed were numerically simulated using a Eulerian-Lagrangian model.
The solid phase was modelled via the Discrete Element Method (DEM) while the hydrodynamic model of the fluid
phase was based on the volume-averaged Navier-Stokes equations. A fluid density-based buoyancy (FDB) model was
adopted to calculate the solid-fluid interaction force. In this paper, the complex ‘four way coupled’ interaction as
proposed by Elghobashi in 1991 was modelled, namely the dominant effect of gas phase on the dispersed particles,
the back influence of the particle phase on the gas phase, and interactions between particles such as collision,
agglomeration and break-up. A stable succession of bubble formation and disappearance was captured. Obtained
pressure drop and interparticle contact number had a good agreement with those reported in previous reference |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids -Fluidization -Fluïdització -- Simulació numèrica |
Rights:
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Document type:
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Article - Published version Conference Object |
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