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[02608] Explorative computing for stable and consistent kinetic relaxation in lattice Boltzmann methods

  • Session Time & Room : 3E (Aug.23, 17:40-19:20) @E604
  • Type : Contributed Talk
  • Abstract : Using lattice Boltzmann methods with multiple relaxation times for robust and fast incompressible turbulent flow simulations requires tuning of the kinetic parameters. We outsource the perfect parallelizability of lattice Boltzmann methods to analyze kinetic relaxation with respect to non-linear stability and consistency based on explorative computing of artificial turbulence in three dimensions. Conclusively, numerical indication is provided, that accuracy and dissipation is adaptively balanced near the Bhatnagar–Gross–Krook single relaxation time approximated in the scale-resolving limit.
  • Classification : 65M12, 35Q20, 35Q30, 76D05
  • Format : Talk at Waseda University
  • Author(s) :
    • Stephan Simonis (Karlsruhe Institute of Technology)
    • Mathias J. Krause (Karlsruhe Institute of Technology)