Verification and validation of a lattice Boltzmann method coupled with complex sub-grid scale turbulence models
Verification and validation of a lattice Boltzmann method coupled with complex sub-grid scale turbulence models
In this paper, we present our recent work on single relaxation Lattice Boltzmann
method and Large Eddy Simulation (LES) models, namely the dynamic Smagorinsky and wall-adapting local eddy-viscosity (WALE). Initially, forced and decaying homogeneous isotropic turbulence cases were run to compare direct numerical simulations with LES. Moreover, the Taylor-Green vortex was employed to further test the performance of the turbulence models under transition to turbulence. The main purpose of this work was the verification for wall-free simulations of the two newly-implemented LES models in the in-house AMROC framework.
Lattice Boltzmann, LES, Isotropic Turbulence, Taylor Green Vortex
Gkoudesnes, Christos
c2db6c71-6628-463f-8260-6ecea15cbe0e
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
November 2019
Gkoudesnes, Christos
c2db6c71-6628-463f-8260-6ecea15cbe0e
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Gkoudesnes, Christos and Deiterding, Ralf
(2019)
Verification and validation of a lattice Boltzmann method coupled with complex sub-grid scale turbulence models.
VI International Conference on Particle-based Methods - Fundamentals and Applications<br/>, , Barcelona, Spain.
28 - 30 Nov 2019.
12 pp
.
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Conference or Workshop Item
(Paper)
Abstract
In this paper, we present our recent work on single relaxation Lattice Boltzmann
method and Large Eddy Simulation (LES) models, namely the dynamic Smagorinsky and wall-adapting local eddy-viscosity (WALE). Initially, forced and decaying homogeneous isotropic turbulence cases were run to compare direct numerical simulations with LES. Moreover, the Taylor-Green vortex was employed to further test the performance of the turbulence models under transition to turbulence. The main purpose of this work was the verification for wall-free simulations of the two newly-implemented LES models in the in-house AMROC framework.
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Accepted/In Press date: 28 October 2019
Published date: November 2019
Venue - Dates:
VI International Conference on Particle-based Methods - Fundamentals and Applications<br/>, , Barcelona, Spain, 2019-11-28 - 2019-11-30
Keywords:
Lattice Boltzmann, LES, Isotropic Turbulence, Taylor Green Vortex
Identifiers
Local EPrints ID: 435493
URI: http://eprints.soton.ac.uk/id/eprint/435493
PURE UUID: 67441e5a-c1d4-4b7c-ba41-744483e3edd2
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Date deposited: 08 Nov 2019 17:30
Last modified: 17 Mar 2024 03:39
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Author:
Christos Gkoudesnes
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