LATTICE BOLTZMANN SIMULATION OF THE MOTION OF SPHERICAL PARTICLES IN STEADY POISEUILLE FLOW

H. H. Yi (), L. J. Fan and Y. Y. Chen
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H. H. Yi: Department of Physics and Electronics Science, Binzhou University, Binzhou Shandong 256600, China
L. J. Fan: Department of Physics and Electronics Science, Binzhou University, Binzhou Shandong 256600, China
Y. Y. Chen: College of Mathematics Physics and Information Engineering, Zhejiang Normal University, Jinhua Zhejiang 321004, China

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 06, 831-846

Abstract: A technique, based on the stress-integration method, for the evaluation of hydrodynamic forces on solid boundaries is proposed to simulate the solid-fluid flow systems in three dimensions in lattice Boltzmann simulations. The accuracy of the scheme is demonstrated by simulating the sphere migrating in a pressure-driven Newtonian fluid flow in a cylindrical tube. The numerical simulation results recover the Segré–Silberberg effect. Using this scheme, we investigate the behavior of a pair of spheres in a tube Poiseuille flow. Oscillatory states are observed for two spheres with different radii placed on opposite sides. The simulation results show that the present model is an effective and efficient direct numerical simulation method for simulating particle motions in fluid flows at finite Reynolds numbers in three dimensions.

Keywords: Lattice Boltzmann method; force evaluation; stress-integration; spheres behavior; 47.11.-j; 83.85.Pt; 47.10.+g; 82.70.Kj (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0129183109014035

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