Dynamics of isotropic homogeneous turbulence with linear forcing using a lattice boltzmann method

Luis Valiño, Jesús Martín, Gabor Házi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The Lattice Boltzmann Method (LBM) has proved to be a promising approach to solve the Navier-Stokes equations, especially for incompressible and isothermal cases. For turbulent flows, the quality of the predictions has been previously studied considering standard spectral forced (ten Cate et al., Comput Fluids 35:1239-1251, 2006) statistically homogeneous isotropic turbulence. In the present contribution, a recently proposed linear forcing scheme working in physical space (Lundgren 2003; Rosales and Meneveau, Phys Fluids 17(9):095106-1,8, 2005) has been integrated in a three-dimensional fifteen-velocity LBM formulation. Results have been analyzed, with special attention to the dynamics of the flow through the invariants of the velocity tensor. This topic had not been studied yet for the linear forcing, regardless of the nature (spectral or LBM) of the numerical method. Results fully agree with standard pseudo-spectral direct numerical simulations, results proving the validity of the LBM with linear forcing in real space to study this kind of turbulent flows.

Original languageEnglish
Pages (from-to)219-237
Number of pages19
JournalFlow, Turbulence and Combustion
Volume84
Issue number2
DOIs
Publication statusPublished - Mar 1 2010

    Fingerprint

Keywords

  • Forced homogeneous DNS
  • LBM

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this