Regimes of motion of magnetocapillary swimmers

Alexander Sukhov; Maxime Hubert; Galien Grosjean; Oleg Trosman; Sebastian Ziegler; Ylona Collard; Nicolas Vandewalle; Ana Sunčana Smith; Jens Harting

doi:10.1140/epje/s10189-021-00065-2

Regimes of motion of magnetocapillary swimmers

Alexander Sukhov (Corresponding author), Maxime Hubert, Galien Grosjean, Oleg Trosman, Sebastian Ziegler, Ylona Collard, Nicolas Vandewalle, Ana Sunčana Smith, Jens Harting

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Abstract: The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmann method. We extend on our previous work, which deals with the self-assembly and a specific type of the swimmer motion characterized by the swimmer’s maximum velocity centred around the particle’s inverse viscous time. Here, we identify additional regimes of motion. First, modifying the ratio of surface tension and magnetic forces allows to study the swimmer propagation in the regime of significantly lower frequencies mainly defined by the strength of the magnetocapillary potential. Second, introducing a constant magnetic contribution in each of the particles in addition to their magnetic moment induced by external fields leads to another regime characterized by strong in-plane swimmer reorientations that resemble experimental observations. Graphic Abstract: [Figure not available: see fulltext.]

Original language	English
Article number	59
Number of pages	12
Journal	European Physical Journal E
Volume	44
Issue number	4
DOIs	https://doi.org/10.1140/epje/s10189-021-00065-2
Publication status	Published - 24 Apr 2021
Externally published	Yes

Bibliographical note

Funding Information:
This work was financially supported by the DFG Priority Programme SPP 1726 “Microswimmers–From Single Particle Motion to Collective Behaviour” (HA 4382/5-1). We further acknowledge the Jülich Supercomputing Centre (JSC) and the High Performance Computing Centre Stuttgart (HLRS) for the allocation of computing time.

Funding

This work was financially supported by the DFG Priority Programme SPP 1726 “Microswimmers–From Single Particle Motion to Collective Behaviour” (HA 4382/5-1). We further acknowledge the Jülich Supercomputing Centre (JSC) and the High Performance Computing Centre Stuttgart (HLRS) for the allocation of computing time.

Funders	Funder number
Deutsche Forschungsgemeinschaft	HA 4382/5-1

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10.1140/epje/s10189-021-00065-2

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title = "Regimes of motion of magnetocapillary swimmers",

abstract = "Abstract: The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmann method. We extend on our previous work, which deals with the self-assembly and a specific type of the swimmer motion characterized by the swimmer{\textquoteright}s maximum velocity centred around the particle{\textquoteright}s inverse viscous time. Here, we identify additional regimes of motion. First, modifying the ratio of surface tension and magnetic forces allows to study the swimmer propagation in the regime of significantly lower frequencies mainly defined by the strength of the magnetocapillary potential. Second, introducing a constant magnetic contribution in each of the particles in addition to their magnetic moment induced by external fields leads to another regime characterized by strong in-plane swimmer reorientations that resemble experimental observations. Graphic Abstract: [Figure not available: see fulltext.]",

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AU - Sukhov, Alexander

AU - Hubert, Maxime

AU - Grosjean, Galien

AU - Trosman, Oleg

AU - Ziegler, Sebastian

AU - Collard, Ylona

AU - Vandewalle, Nicolas

AU - Smith, Ana Sunčana

AU - Harting, Jens

N1 - Funding Information: This work was financially supported by the DFG Priority Programme SPP 1726 “Microswimmers–From Single Particle Motion to Collective Behaviour” (HA 4382/5-1). We further acknowledge the Jülich Supercomputing Centre (JSC) and the High Performance Computing Centre Stuttgart (HLRS) for the allocation of computing time.

PY - 2021/4/24

Y1 - 2021/4/24

N2 - Abstract: The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmann method. We extend on our previous work, which deals with the self-assembly and a specific type of the swimmer motion characterized by the swimmer’s maximum velocity centred around the particle’s inverse viscous time. Here, we identify additional regimes of motion. First, modifying the ratio of surface tension and magnetic forces allows to study the swimmer propagation in the regime of significantly lower frequencies mainly defined by the strength of the magnetocapillary potential. Second, introducing a constant magnetic contribution in each of the particles in addition to their magnetic moment induced by external fields leads to another regime characterized by strong in-plane swimmer reorientations that resemble experimental observations. Graphic Abstract: [Figure not available: see fulltext.]

AB - Abstract: The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmann method. We extend on our previous work, which deals with the self-assembly and a specific type of the swimmer motion characterized by the swimmer’s maximum velocity centred around the particle’s inverse viscous time. Here, we identify additional regimes of motion. First, modifying the ratio of surface tension and magnetic forces allows to study the swimmer propagation in the regime of significantly lower frequencies mainly defined by the strength of the magnetocapillary potential. Second, introducing a constant magnetic contribution in each of the particles in addition to their magnetic moment induced by external fields leads to another regime characterized by strong in-plane swimmer reorientations that resemble experimental observations. Graphic Abstract: [Figure not available: see fulltext.]

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DO - 10.1140/epje/s10189-021-00065-2

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VL - 44

JO - European Physical Journal E

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Regimes of motion of magnetocapillary swimmers

Abstract

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