Calculation of isotropic turbulence using a pure Lagrangian vortex method

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

doi:10.1016/j.jcp.2007.06.003

Calculation of isotropic turbulence using a pure Lagrangian vortex method

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

Vice-President

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

The vortex method is applied to the calculation of a decaying homogeneous isotropic turbulence of Re_λ = 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 language	English
Pages (from-to)	1589-1606
Number of pages	18
Journal	Journal of Computational Physics
Volume	226
Issue number	2
DOIs	https://doi.org/10.1016/j.jcp.2007.06.003
Publication status	Published - 2007 Oct 1

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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10.1016/j.jcp.2007.06.003

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T1 - Calculation of isotropic turbulence using a pure Lagrangian vortex method

AU - Yokota, R.

AU - Sheel, T. K.

AU - Obi, S.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - 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.

AB - 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.

KW - Core spreading method

KW - Fast multipole methods

KW - Isotropic turbulence

KW - Particle strength exchange

KW - Vortex methods

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SP - 1589

EP - 1606

JO - Journal of Computational Physics

JF - Journal of Computational Physics

IS - 2

ER -

Calculation of isotropic turbulence using a pure Lagrangian vortex method

Abstract

Keywords

ASJC Scopus subject areas

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