Comparing vortex methods and finite difference methods in a homogeneous turbulent shear flow

R. Yokota, S. Obi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The vortex method is applied to the calculation of a homogeneous shear turbulence, and compared with a finite difference code using identical calculation conditions. The core spreading method with spatial adaptation is selected as the viscous diffusion scheme of the vortex method. The shear rate is chosen so that it matches the maximum value observed in a fully developed channel flow. The isosurface, anisotropy tensors, and joint probability density functions reflect the ability of the present vortex method to quantitatively reproduce the anisotropic nature of strongly sheared turbulence, both instantaneously and statistically.

Original languageEnglish
Pages (from-to)828-846
Number of pages19
JournalInternational Journal for Numerical Methods in Fluids
Volume63
Issue number7
DOIs
Publication statusPublished - 2010 Jul 1

Keywords

  • Core spreading methods
  • Fast multipole methods
  • Finite difference methods
  • Homogeneous shear flow
  • Meshfree methods
  • Vortex methods

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

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