TY  - CONF
AU  - Xie, Qingguang
AU  - Sukhov, Alexander
AU  - Harting, Jens
TI  - Computer simulations of magnetocapillary swimmers
M1  - FZJ-2016-05380
PY  - 2016
AB  - 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.
T2  - Microswimmers – From Single Particle Motion to Collective Behaviour
CY  - 4 Oct 2016 - 7 Oct 2016, Bonn (Germany)
Y2  - 4 Oct 2016 - 7 Oct 2016
M2  - Bonn, Germany
LB  - PUB:(DE-HGF)24
UR  - https://juser.fz-juelich.de/record/819784
ER  -