@Article{CiCP-7-544,
author = {},
title = {A LB-DF/FD Method for Particle Suspensions},
journal = {Communications in Computational Physics},
year = {2010},
volume = {7},
number = {3},
pages = {544--563},
abstract = {<p style="text-align: justify;">In this paper, we propose a lattice Boltzmann (LB) method coupled with a
direct-forcing fictitious domain (DF/FD) method for the simulation of particle suspensions.
This method combines the good features of the LB and the DF/FD methods
by using two unrelated meshes, namely, an Eulerian mesh for the flow domain and a
Lagrangian mesh for the solid domain, which avoids the re-meshing procedure and
does not need to calculate the hydrodynamic forces at each time step. The non-slip
boundary condition is enforced by introducing a forcing term into the lattice Boltzmann
equation, which preserves all remarkable advantages of the LBM in simulating
fluid flows. The present LB-DF/FD method has been validated by comparing its results
with analytical results and previous numerical results for a single circular particle
and two circular particles settling under gravity. The interaction between particle and
wall, the process of drafting-kissing-tumbling (DKT) of two settling particles will be
demonstrated. As a manifestation of the efficiency of the present method, the settling
of a large number (128) of circular particles is simulated in an enclosure.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.2009.08.155},
url = {http://global-sci.org/intro/article_detail/cicp/7642.html}
}