Simulations of single and multiple swimmers with non-divergence free deforming geometries

Mattia Gazzola, Philippe Chatelain, Wim M. van Rees, Petros Koumoutsakos

Research output: Contribution to journalArticlepeer-review


We present a vortex particle method coupled with a penalization technique to simulate single and multiple swimmers in an incompressible, viscous flow in two and three dimensions. The proposed algorithm can handle arbitrarily deforming bodies and their corresponding non-divergence free deformation velocity fields. The method is validated on a number of benchmark problems with stationary and moving boundaries. Results include flows of tumbling objects and single and multiple self-propelled swimmers.

Original languageEnglish (US)
Pages (from-to)7093-7114
Number of pages22
JournalJournal of Computational Physics
Issue number19
StatePublished - Aug 10 2011
Externally publishedYes


  • Deforming body
  • Fluid-structure interaction
  • Penalization
  • Swimmer
  • Vortex methods

ASJC Scopus subject areas

  • Numerical Analysis
  • Modeling and Simulation
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Mathematics
  • Applied Mathematics

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