All good things come in threes - Three beads learn to swim with lattice Boltzmann and a rigid body solver

  title={All good things come in threes - Three beads learn to swim with lattice Boltzmann and a rigid body solver},
  author={Kristina Pickl and J. G{\"o}tz and K. Iglberger and J. Pande and K. Mecke and A. Smith and U. R{\"u}de},
  • Kristina Pickl, J. Götz, +4 authors U. Rüde
  • Published 2012
  • Physics, Computer Science, Mathematics
  • ArXiv
  • We simulate the self-propulsion of devices in a fluid in the regime of low Reynolds numbers. Each device consists of three bodies (spheres or capsules) connected with two damped harmonic springs. Sinusoidal driving forces compress the springs which are resolved within a rigid body physics engine. The latter is consistently coupled to a 3D lattice Boltzmann framework for the fluid dynamics. In simulations of three-sphere devices, we find that the propulsion velocity agrees well with theoretical… CONTINUE READING
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