Application of spectral forcing in lattice-Boltzmann simulations of homogeneous turbulence

A. ten Cate, E. van Vliet, J. J. Derksen*, H. E. A. Van den Akker

*Corresponding author for this work

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

An efficient numerical method for the direct simulation of homogeneous turbulent flow has been obtained by combining a spectral forcing algorithm for homogeneous turbulence with a lattice-Boltzmann scheme for solution of the continuity and NavierStokes equations. The spectral forcing scheme of Alvelius [Alvelius K. Random forcing of three-dimensional homogeneous turbulence. Phys Fluids 1999; 11(7):1880-89] is used which allows control of the power input by eliminating the force-velocity correlation in the Fourier domain and enables anisotropic forcing. A priori chosen properties such as the Kolmogorov length scale, the integral length scale and the integral time scale are recovered. This demonstrates that the scheme works accurately with the lattice-Boltzmann method and that all specific features of the forcing scheme are recovered in the lattice-Boltzmann implementation. (c) 2005 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1239-1251
Number of pages13
JournalComputers & Fluids
Volume35
Issue number10
DOIs
Publication statusPublished - Dec 2006

Keywords

  • DIRECT NUMERICAL SIMULATIONS
  • EQUATION
  • SCHEME
  • FLOW

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