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An eulerian-lagrangian modeling of fluidized bed

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CMGM2012_I06_An Eulerian-Lagrangian Modeling of Fluidized Bed.pdf (1,077Mb) (Restricted access)   Request copy 

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hdl:2117/106316

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Zhang, Hao
Yuan-Qiang, Tan
Dong-Min, Yang
Trias Miquel, Francesc XavierMés informacióMés informacióMés informació
Sheng, Yong
Oliva Llena, AsensioMés informacióMés informacióMés informació
Document typeConference report
Defense date2013
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
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
CitationZhang, H., Yuan-Qiang, T., Dong-Min, Y., Trias, F. X., Sheng, Y., Oliva, A. An eulerian-lagrangian modeling of fluidized bed. A: National Conference on Computational Mechanics of Granular Materials. "Proceedings on 2012 National Conference on Computational Mechanics of Granular Materials". Zhangjiajie: 2013, p. 659-663. 
URIhttp://hdl.handle.net/2117/106316
ISBN978-7-5611-7240-7
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