TY - JOUR
T1 - Lattice Boltzmann Simulations of Two Linear Microswimmers Using the Immersed Boundary Method
AU - Geyer , D.
AU - Ziegler , S.
AU - Sukhov , A.
AU - Hubert , M.
AU - Smith , A.-S.
AU - Aouane , O.
AU - Malgaretti , P.
AU - Harting , J.
JO - Communications in Computational Physics
VL - 1
SP - 310
EP - 329
PY - 2023
DA - 2023/02
SN - 33
DO - http://doi.org/10.4208/cicp.OA-2022-0056
UR - https://global-sci.org/intro/article_detail/cicp/21436.html
KW - Immersed boundary method, lattice Boltzmann method, finite element method, microswimmer, collective motion.
AB - <p style="text-align: justify;">The performance of a single or the collection of microswimmers strongly
depends on the hydrodynamic coupling among their constituents and themselves. We
present a numerical study for a single and a pair of microswimmers based on lattice
Boltzmann method (LBM) simulations. Our numerical algorithm consists of two separable parts. Lagrange polynomials provide a discretization of the microswimmers and
the lattice Boltzmann method captures the dynamics of the surrounding fluid. The
two components couple via an immersed boundary method. We present data for a
single swimmer system and our data also show the onset of collective effects and, in
particular, an overall velocity increment of clusters of swimmers.</p>