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@ARTICLE{Sukhov:865670,
      author       = {Sukhov, Alexander and Ziegler, Sebastian and Xie, Qingguang
                      and Trosman, Oleg and Pande, Jayant and Grosjean, Galien and
                      Hubert, Maxime and Vandewalle, Nicolas and Smith,
                      Ana-Sunčana and Harting, Jens},
      title        = {{O}ptimal motion of triangular magnetocapillary swimmers},
      journal      = {The journal of chemical physics},
      volume       = {151},
      number       = {12},
      issn         = {1089-7690},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2019-05012},
      pages        = {124707 -},
      year         = {2019},
      abstract     = {A system of ferromagnetic particles trapped at a
                      liquid-liquid interface and subjected to a set of magnetic
                      fields (magnetocapillary swimmers) is studied numerically
                      using a hybrid method combining the pseudopotential lattice
                      Boltzmann method and the discrete element method. After
                      investigating the equilibrium properties of a single, two,
                      and three particles at the interface, we demonstrate a
                      controlled motion of the swimmer formed by three particles.
                      It shows a sharp dependence of the average center-of-mass
                      speed on the frequency of the time-dependent external
                      magnetic field. Inspired by experiments on magnetocapillary
                      microswimmers, we interpret the obtained maxima of the
                      swimmer speed by the optimal frequency centered around the
                      characteristic relaxation time of a spherical particle. It
                      is also shown that the frequency corresponding to the
                      maximum speed grows and the maximum average speed decreases
                      with increasing interparticle distances at moderate swimmer
                      sizes. The findings of our lattice Boltzmann simulations are
                      supported by bead-spring model calculations},
      cin          = {IEK-11 / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-11-20140314 / $I:(DE-82)080012_20140620$},
      pnm          = {121 - Solar cells of the next generation (POF3-121) /
                      Dynamics of complex fluids $(jiek11_20161101)$},
      pid          = {G:(DE-HGF)POF3-121 / $G:(DE-Juel1)jiek11_20161101$},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:31575188},
      UT           = {WOS:000488830300051},
      doi          = {10.1063/1.5116860},
      url          = {https://juser.fz-juelich.de/record/865670},
}