Toward advanced subgrid models for Lattice-Boltzmann-based Large-eddy simulation: Theoretical formulations

39Citations
Citations of this article
62Readers
Mendeley users who have this article in their library.

Abstract

This paper addresses the issue of developing advanced subgrid model for large-eddy simulations (LES) of turbulent flows based on Lattice Boltzmann methods (LBM). Most of already existing subgrid closures used in LES-LBM are straightforward extensions of the most crude model developed within the Navier-Stokes equations, namely the Smagorinsky eddy-viscosity model. In a first part, it is shown how to obtain an improved eddy-viscosity subgrid model for LBM. The original implementation of the Inertial-Range Consistent Smagorinsky model proposed by Dong and Sagaut for the D3Q19 scheme is used as an illustration. In a second step, an original extension of the Approximate Deconvolution Method proposed by Adams and Stolz for Navier-Stokes simulation is proposed. This new LBM-LES approach does not rely on the eddy-viscosity concept and is written directly within the LBM framework. It is shown that it can be implemented thanks to a trivial modification of the existing LBM solvers for Direct Numerical Simulation. © 2009 Elsevier Ltd. All rights reserved.

Cite

CITATION STYLE

APA

Sagaut, P. (2010). Toward advanced subgrid models for Lattice-Boltzmann-based Large-eddy simulation: Theoretical formulations. Computers and Mathematics with Applications, 59(7), 2194–2199. https://doi.org/10.1016/j.camwa.2009.08.051

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free