Rotation characteristic and granular temperature analysis in a bubbling fluidized bed of binary particles

Title
Rotation characteristic and granular temperature analysis in a bubbling fluidized bed of binary particles
Authors
김동립
Keywords
Smagorinsky constant; Rotational characteristics; Binary mixture particles; Large eddy simulation; Discrete hard sphere model
Issue Date
2015-02
Publisher
ELSEVIER SCIENCE INC
Citation
PARTICUOLOGY, v. 18, Page. 76-88
Abstract
In this work, a discrete particle model (DPM) was applied to investigate the dynamic characteristics in a gas-solid bubbling fluidized bed of binary solid particles. The solid phase was simulated by the hard-sphere discrete particle model. The large eddy simulation (LES) method was used to simulate the gas phase. To improve the accuracy of the simulation, an improved sub-grid scale (SGS) model in the LES method was also applied. The mutative Smagorinsky constant case was compared with the previously published experimental data. The simulation by the mutative Smagorinsky constant model exhibited better agreement with the experimental data than that by the common invariant Smagorinsky constant model. Various restitution coefficients and different compositions of binary solids were investigated to determine their influences on the rotation characteristics and granular temperatures of the particles. The particle translational and rotational characteristic distributions were related to certain simulation parameters. (C) 2014 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
URI
http://www.sciencedirect.com/science/article/pii/S1674200114001096http://hdl.handle.net/20.500.11754/22501
ISSN
1674-2001; 2210-4291
DOI
http://dx.doi.org/10.1016/j.partic.2014.02.011
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE