Numerical simulation of the gas-solid flow in a fluidized bed by combining discrete particle method with computational fluid dynamics

1997 ◽  
Vol 52 (16) ◽  
pp. 2785-2809 ◽  
Author(s):  
B.H. Xu ◽  
A.B. Yu
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Computational Fluid Dynamics ◽  
Fluidized Bed ◽  
Particle Method ◽  
Solid Flow ◽  
Discrete Particle ◽  
Discrete Particle Method

scholarly journals Simulation of different gas–solid flow regimes using a drag law derived from lattice Boltzmann simulations

2018 ◽  
Vol 10 (4) ◽  
pp. 202-214
Author(s):  
Yeping Xie ◽  
Yongquan Liu ◽  
Linmin Li ◽  
Chang Xu ◽  
Baokuan Li
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Discrete Element Method ◽  
Fluidized Bed ◽  
Lattice Boltzmann ◽  
Flow Regimes ◽  
Discrete Element ◽  
Solid Flow ◽  
Lattice Boltzmann Simulations ◽  
Drag Law

Gas–solid flows are widely found in various industrial processes, e.g. chemical engineering and sand ingestion test for aero-engine; the interaction between continuum and discrete particles in such systems always leads to complex phase structures of which fundamental understandings are needed. Within the OpenFOAM, the present work uses the discrete element method combined with the computational fluid dynamics to investigate the gas–solid flow behaviors in a dense fluidized bed under various conditions. A drag law which is for polydisperse systems derived from lattice Boltzmann simulations is incorporated into the computational fluid dynamics-discrete element method framework and its suitability for different flow regimes is investigated. The regimes including, namely slugging bed, jet-in-fluidized bed, spout fluidization, and intermediate, are simulated and validated against experiments. The results show that the lattice Boltzmann drag relation performs well in capturing characteristics of different gas–solid flow regimes. Good agreements are also obtained quantitatively by comparisons of pressure drop fluctuation, and time-averaged gas velocity and particle flux.

Numerical simulation of sedimentation of microparticles using the discrete particle method

Particuology ◽  
2008 ◽  
Vol 6 (1) ◽  
pp. 38-49 ◽  
Author(s):  
Chane-Yuan Yang ◽  
Yulong Ding ◽  
Dave York ◽  
Walter Broeckx
Keyword(s):  
Numerical Simulation ◽  
Particle Method ◽  
Discrete Particle ◽  
Discrete Particle Method

Numerical simulation of pollution and oil spill spreading by the stochastic discrete particle method

2007 ◽  
Vol 47 (2) ◽  
pp. 280-292 ◽  
Author(s):  
B. V. Arkhipov ◽  
V. N. Koterov ◽  
V. V. Solbakov ◽  
D. A. Shapochkin ◽  
Yu. S. Yurezanskaya
Keyword(s):  
Numerical Simulation ◽  
Oil Spill ◽  
Particle Method ◽  
Discrete Particle ◽  
Discrete Particle Method
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