Lattice Boltzmann Simulation of Sedimentation of a Single Charged Elastic Dumbbell in a Newtonian Fluid
ZHANG Chao-Ying1, TAN Hui-Li1, LIU Mu-Ren1, KONG Ling-Jiang1, SHI Juan2
1College of Physics and Information Technology, Guangxi Normal University, Guilin 541004
2Department of Communication and Information Engineering, Guilin Institute of Electronic Technology, Guilin 541004
Lattice Boltzmann Simulation of Sedimentation of a Single Charged Elastic Dumbbell in a Newtonian Fluid
1College of Physics and Information Technology, Guangxi Normal University, Guilin 541004
2Department of Communication and Information Engineering, Guilin Institute of Electronic Technology, Guilin 541004
Abstract： Based on the lattice Boltzmann method, the sedimentations of elastic dumbbells with different charges in a Newtonian fluid under the same and different initial conditions are simulated. Due to the polarizing effects, there are Coulomb forces exerted on the charged elastic dumbbells during their sedimentations, which change their original motions significantly. All of the numerical results show that, if the charged elastic dumbbells are released at offset-centreline positions with zero velocity and settle under gravity, they fall down vertically off the centreline and their orientations tend to be the horizontal finally, and the distances apart from the centreline increase with the increasing charges of the elastic dumbbells.
ZHANG Chao-Ying;TAN Hui-Li;LIU Mu-Ren;KONG Ling-Jiang;SHI Juan. Lattice Boltzmann Simulation of Sedimentation of a Single Charged Elastic Dumbbell in a Newtonian Fluid[J]. 中国物理快报, 2005, 22(4): 896-899.
ZHANG Chao-Ying, TAN Hui-Li, LIU Mu-Ren, KONG Ling-Jiang, SHI Juan. Lattice Boltzmann Simulation of Sedimentation of a Single Charged Elastic Dumbbell in a Newtonian Fluid. Chin. Phys. Lett., 2005, 22(4): 896-899.
2005, Vol. 22 
