Numerical simulation of 3D turbulent flows around bodies subjected to vortex-induced and forced vibration

  • Dmitri K. Zaitsev
  • Nikolai A. Schur
  • Evgueni M. Smirnov
Conference paper
Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 67)

Abstract

A parallel CFD technique is applied to fluid structure interaction problems. Namely, the vortex-induced vibration of an elastically mounted circular cylinder is investigated, and the flow generated by oscillations of a thin flexible blade (modeling a piezo-fan) is considered. The flow around vibrating bodies is computed with the deforming mesh aproach based on the ALE formulation, and the hydrodynamic force computed is used to predict the body motion/deformation. The turbulence is simulated via a RANS/LES vortex-resolving approach. In the cylinder case characterized by two-dimensional geometry, both 2D and 3D formulations are used, with the spanwise periodicity conditions imposed for 3D simulation. A comparison with experimental data has proven that the 2D simulation is inadequate.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Dmitri K. Zaitsev
    • 1
  • Nikolai A. Schur
    • 1
  • Evgueni M. Smirnov
    • 1
  1. 1.Dept. AerodynamicsSt.-Petersburg State Polytechnic UniversitySt.-PetersburgRussia

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