화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.30, No.3, 761-770, March, 2013
DOI10.1007/s11814-012-0200-3  Export Citation
CFD study of hydrodynamics behavior of a vibrating fluidized bed using kinetic-frictional stress model of granular flow
Mahmood Reza Rahimi, Nader Azizi1, Seyyed Hossein Hosseini2, †, and Goodarz Ahmadi3
  • Process Intensification Lab., Department of Chemical Engineering, School of Engineering, Yasouj University, Yasouj 75918-74831, Iran
  • 1Department of Physics, Khoy Branch, Islamic Azad University, Khoy, Iran
  • 2Department of Chemical Engineering, Faculty of Engineering, University of Ilam, Ilam 69315-516, Iran
  • 3Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY 13699-5725, U.S.A., USA
E-mail:
The hydrodynamics of a vertically vibrating fluidized bed was studied using an Eulerian-Eulerian twofluid model (TFM) incorporating the kinetic theory of granular flow and including the frictional stress effects. Influences of frictional stresses, vibration amplitudes and frequency on behavior of the particles were studied. In the case with vertical vibration, the numerical results showed three regions of solid concentration along the bed height: a low particle concentration region near the bottom of the bed, a high concentration region in the middle of the bed, and a transition region at top of the bed. The accuracy of results was found to be closely related to the inclusion of the frictional stresses. Ability of the two-fluid model for predicting the hydrodynamics of vibrating fluidized beds was discussed and confirmed.
Keywords:Vibrating Fluidized Beds;Hydrodynamic;Two-fluid Model;Kinetic Theory;Frictional Stresses;CFD
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