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|Title: ||Lattice-Boltzmann hydrodynamics of anisotropic active matter|
|Authors: ||de Graaf, Joost|
Mathijssen, Arnold J.T.M.
Shendruk, Tyler N.
|Issue Date: ||2016|
|Publisher: ||© AIP|
|Citation: ||DE GRAAF, J. ... et al.,2016. Lattice-Boltzmann hydrodynamics of anisotropic active matter. The Journal of Chemical Physics, 144: 134106.|
|Abstract: ||A plethora of active matter models exist that describe the behavior of self-propelled particles (or
swimmers), both with and without hydrodynamics. However, there are few studies that consider
shape-anisotropic swimmers and include hydrodynamic interactions. Here, we introduce a simple
method to simulate self-propelled colloids interacting hydrodynamically in a viscous medium using
the lattice-Boltzmann technique. Our model is based on raspberry-type viscous coupling and a
force/counter-force formalism, which ensures that the system is force free. We consider several
anisotropic shapes and characterize their hydrodynamic multipolar flow field. We demonstrate that
shape-anisotropy can lead to the presence of a strong quadrupole and octupole moments, in addition to
the principle dipole moment. The ability to simulate and characterize these higher-order moments will
prove crucial for understanding the behavior of model swimmers in confining geometries|
|Description: ||This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in DE GRAAF, J. ... et al.,2016. Lattice-Boltzmann hydrodynamics of anisotropic active matter. The Journal of Chemical Physics, 144: 134106 and may be found at https://doi.org/10.1063/1.4944962.|
|Sponsor: ||J.d.G. acknowledges financial support by a NWO Rubicon
Grant (No. #680501210). J.d.G. and C.H. thank the DFG
Reuse of AIP Publishing content is subject to the terms: https://publishing.aip.org/authors/rights-and-permissions. Downloaded to IP: 126.96.36.199 On: Fri, 08 Apr
134106-9 de Graaf et al. J. Chem. Phys. 144, 134106 (2016)
for funding through the SPP 1726 “Microswimmers—From
Single Particle Motion to Collective Behavior.” A.J.T.M.M.
and T.N.S. acknowledge financial support from an ERC
Advanced Grant MiCE (No. 291234). T.N.S. thanks EMBO
for funding through (No. ALTF181-2013)|
|Publisher Link: ||https://doi.org/10.1063/1.4944962|
|Appears in Collections:||Published Articles (Maths)|
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