Calculation of isotropic turbulence using a pure Lagrangian vortex method

R. Yokota, T. K. Sheel, S. Obi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The vortex method is applied to the calculation of a decaying homogeneous isotropic turbulence of Reλ = 25, 50 and the results are compared with a spectral method calculation. Vortex method calculations were accelerated by the use of a fast multipole method for periodic boundary conditions. The core spreading method and particle strength exchange were selected as the viscous diffusion scheme. The effect of spatial resolution was examined along with Reynolds number dependence and the effect of spatial adaption of elements.

Original languageEnglish
Pages (from-to)1589-1606
Number of pages18
JournalJournal of Computational Physics
Volume226
Issue number2
DOIs
Publication statusPublished - 2007 Oct 1

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Keywords

  • Core spreading method
  • Fast multipole methods
  • Isotropic turbulence
  • Particle strength exchange
  • Vortex methods

ASJC Scopus subject areas

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

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