Modeling and simulation of fish-like swimming

  • Authors:

  • M. Bergmann;A. Iollo

  • Affiliations:

  • INRIA Bordeaux - Sud Ouest, Equipe-projet MC2, 33405 Talence, France and Institut de Mathématiques de Bordeaux, UMR 5251, Université Bordeaux 1, 33405 Talence, France;INRIA Bordeaux - Sud Ouest, Equipe-projet MC2, 33405 Talence, France and Institut de Mathématiques de Bordeaux, UMR 5251, Université Bordeaux 1, 33405 Talence, France

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2011

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Abstract

Modeling and simulation of two-dimensional flows past deformable bodies are considered. The incompressible Navier-Stokes equations are discretized in space onto a fixed cartesian mesh and the displacement of deformable objects through the fluid is taken into account using a penalization method. The interface between the solid and the fluid is tracked using a level-set description so that it is possible to simulate several bodies freely evolving in the fluid. As an illustration of the methods, fish-like locomotion is analyzed in terms of propulsion efficiency. Underwater maneuvering and school swimming are also explored.