Lattice Boltzmann simulations of two linear microswimmers using the immersed boundary method
Soft Condensed Matter
2023-03-15 v2 Fluid Dynamics
Abstract
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.
Cite
@article{arxiv.2202.12147,
title = {Lattice Boltzmann simulations of two linear microswimmers using the immersed boundary method},
author = {D. Geyer and S. Ziegler and A. Sukhov and M. Hubert and A. -S. Smith and O. Aouane and P. Malgaretti and J. Harting},
journal= {arXiv preprint arXiv:2202.12147},
year = {2023}
}