This title appears in the Scientific Report :
2016
Please use the identifier:
http://hdl.handle.net/2128/12895 in citations.
Computer simulations of magnetocapillary swimmers
Computer simulations of magnetocapillary swimmers
Self-assembled magnetocapillary microswimmers were experimentally demonstrated recently. Here, we study the motion of a magnetocapillary swimmer by means of a hybrid lattice Boltzmann and discrete element method. Three magnetic particles are placed at a fluid-fluid interface. The particles deform th...
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Personal Name(s): | Xie, Qingguang |
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Sukhov, Alexander (Corresponding author) / Harting, Jens | |
Contributing Institute: |
Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien; IEK-11 |
Imprint: |
2016
|
Conference: | Microswimmers – From Single Particle Motion to Collective Behaviour, Bonn (Germany), 2016-10-04 - 2016-10-07 |
Document Type: |
Poster |
Research Program: |
Theory, modelling and simulation |
Link: |
OpenAccess |
Publikationsportal JuSER |
Self-assembled magnetocapillary microswimmers were experimentally demonstrated recently. Here, we study the motion of a magnetocapillary swimmer by means of a hybrid lattice Boltzmann and discrete element method. Three magnetic particles are placed at a fluid-fluid interface. The particles deform the interface due to their weights, leading thus to a capillary attraction force. At the same time, the particles experience a repulsive magnetic dipole-dipole force along with an upwards applied static magnetic field. Through the competing of attractive capillary and repulsive magnetic forces, a stable assembly of the three magnetic particles is achieved. By applying an oscillating horizontal magnetic field, the triplet demonstrates a directed motion. We numerically investigate the effect of frequency and direction of the magnetic field on the motion of the swimmer and analyze the results theoretically. In addition, we demonstrate a possible application of magnetocapillary swimmers for cargo transportation. |