DNS of Incompressible Flows Using Lattice Boltzmann Method

Abstract

Numerical simulations using the lattice Boltzmann method are presented for the two and three dimensional decaying homogeneous isotropic turbulence for low, medium and high Reynolds numbers. Time history of global statistical quantities, wave number spectra, and vorticity contour plots are compared with those of the higher order method of lines. Comparisons between the square lattice and the triangular (FHP) lattice models are also performed. It is found that the lattice Boltzmann method is able to reproduce the dynamics of decaying turbulence and could be an alternative for solving the Navier Stokes equations. Computational costs of the lattice Boltzmann method is less than half of that of the 10th-order method of lines.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013637

Entities

People

  • Nobuyuki Satofuka

Organizations

  • Kyoto Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Crystal Lattices
  • Crystal Structure
  • Cubic Lattices
  • Differential Equations
  • Distribution Functions
  • Equations
  • Flow
  • Fluid Flow
  • Incompressible Flow
  • Navier Stokes Equations
  • Partial Differential Equations
  • Relaxation Time
  • Reynolds Number
  • Simulations
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Mathematics
  • Physics

Readers

  • Fluid Dynamics.
  • Fluid Mechanics and Fluid Dynamics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.