%0 Conference Paper
%A Xie, Qingguang
%A Sukhov, Alexander
%A Harting, Jens
%T Computer simulations of magnetocapillary swimmers
%M FZJ-2016-05380
%D 2016
%X 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.
%B Microswimmers – From Single Particle Motion to Collective Behaviour
%C 4 Oct 2016 - 7 Oct 2016, Bonn (Germany)
Y2 4 Oct 2016 - 7 Oct 2016
M2 Bonn, Germany
%F PUB:(DE-HGF)24
%9 Poster
%U https://juser.fz-juelich.de/record/819784