@Article{CiCP-29-1411,
author = {H. Sedaghat , M.A. H. Bagheri , A.M. Shahmardan , M.Norouzi , M.C. Khoo , B. and G. Jayathilake , P.},
title = {A Hybrid Immersed Boundary-Lattice Boltzmann Method for Simulation of Viscoelastic Fluid Flows Interaction with Complex Boundaries},
journal = {Communications in Computational Physics},
year = {2021},
volume = {29},
number = {5},
pages = {1411--1445},
abstract = {<p style="text-align: justify;">In this study, a numerical technique based on the Lattice Boltzmann method
is presented to model viscoelastic fluid interaction with complex boundaries which are
commonly seen in biological systems and industrial practices. In order to accomplish
numerical simulation of viscoelastic fluid flows, the Newtonian part of the momentum
equations is solved by the Lattice Boltzmann Method (LBM) and the divergence of the
elastic tensor, which is solved by the finite difference method, is added as a force term
to the governing equations. The fluid-structure interaction forces are implemented
through the Immersed Boundary Method (IBM). The numerical approach is validated
for Newtonian and viscoelastic fluid flows in a straight channel, a four-roll mill geometry as well as flow over a stationary and rotating circular cylinder. Then, a numerical
simulation of Oldroyd-B fluid flow around a confined elliptical cylinder with different
aspect ratios is carried out for the first time. Finally, the present numerical approach
is used to simulate a biological problem which is the mucociliary transport process of
human respiratory system. The present numerical results are compared with appropriate analytical, numerical and experimental results obtained from the literature.</p>},
issn = {1991-7120},
doi = {https://doi.org/10.4208/cicp.OA-2019-0158},
url = {http://global-sci.org/intro/article_detail/cicp/18720.html}
}