Lord Kelvin's isotropic helicoid

  title={Lord Kelvin's isotropic helicoid},
  author={Darci Collins and Rami J. Hamati and Fabien Candelier and Kristian Gustavsson and Bernhard Mehlig and Gregory A. Voth},
  journal={Physical Review Fluids},
Nearly 150 years ago, Lord Kelvin proposed the isotropic helicoid with isotropic yet chiral interactions with a fluid so that translation couples to rotation. A 3D-printed implementation of his design is found experimentally to have no detectable translation-rotation coupling, although the particle point-group symmetry allows this coupling. These results are explained by demonstrating that in Stokes flow, the chiral coupling of such isotropic helicoids made out of non-chiral vanes is due only… Expand
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