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ARTICLE
Numerical simulation of the particle settling in a Bingham fluid using the two-way coupling CFD-DEM scheme
1
Federal University of Technology – Paraná (UTFPR), Mechanical Engineering, Curitiba, Paraná, Brazil
Submission date: 2021-11-22
Final revision date: 2022-03-24
Acceptance date: 2022-04-21
Online publication date: 2022-06-12
Publication date: 2022-07-30
Corresponding author
Joviano Janjar Casarin
Mechanical Engineering, Technological Federal University of Paraná, Curitiba, Brazil
Mechanical Engineering, Technological Federal University of Paraná, Curitiba, Brazil
Journal of Theoretical and Applied Mechanics 2022;60(3):409-422
KEYWORDS
TOPICS
ABSTRACT
The computational fluid dynamics coupled with the discrete element method is widely employed
to simulate particle-fluid interactions in solid-liquid flows. The restrictions imposed
by the CFD-DEM scheme to very fine meshes contribute to a scant amount of numerical
results of particle settling in viscoplastic fluids. This paper presents the two-way coupling
CFD-DEM simulation of the particle sedimentation in a quiescent Bingham fluid. The results
for terminal particle velocity showed good agreement with the experimental data.
Owing to the viscoplastic behavior of the fluid, low values of the relaxation parameter of
the solid-phase must be specified to obtain accurate results.
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