Journal
CHEMICAL ENGINEERING SCIENCE
Volume 192, Issue -, Pages 1157-1166Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2018.08.027
Keywords
Drag force; Super-quadric cubes; Lattice Boltzmann method; Non-spherical particles assemblies
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Funding
- China Scholarship Council
- Swiss National Science Foundation [200021_153290]
- Stiftung Claude Giuliana
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The accurate prediction of the drag force exerted by a fluid on assemblies of particles is critical to simulate key characteristics of gas-solid systems such as the bed expansion in fluidized beds. To this end, a lattice Boltzmann method has been applied to compute the drag force acting on assemblies of cubes for a wide range of Reynolds numbers, Re-v = 0-200, and solid volume fractions, phi = 0.1 - 0.45. The numerical data was used to propose a new drag force correlation for assemblies of cubes as a function of the Reynolds number and solid volume fraction. The new drag force correlation is expected to improve the accuracy of Euler-Euler and Euler-Lagrangian simulations of cubic particles. (C) 2018 Elsevier Ltd. All rights reserved.
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