Volume 16, 2007CEMRACS 2005 - Computational Aeroacoustics and Computational Fluid Dynamics in Turbulent Flows
|Page(s)||66 - 76|
|Published online||02 March 2007|
A proposed simplification of the adaptive local deconvolution method
Institute of Aerodynamics, Technische Universität München, D-85747 Garching, Germany.
Corresponding author: firstname.lastname@example.org
The adaptive local deconvolution method (ALDM) [Hickel, Adams and Domaradzki. J. Comp. Phys., 213:413436, 2006] provides a systematic framework for the implicit large-eddy simulation (ILES) of turbulent flows. Exploiting numerical truncation errors, the subgrid scale (SGS) model of ALDM is implicitly contained within the discretization. An explicit computation of model terms therefore becomes unnecessary. Subject of the present paper is a modification of the numerical algorithm that allows for reducing the amount of computational operations without affecting the quality of the results. Computational results for isotropic turbulence and plane channel flow show that the simplified adaptive local deconvolution (SALD) method performs similarly to the original method ALDM and at least as well as established explicit models.
Key words: implicit large-eddy simulation / subgrid-scale modeling / adaptive deconvolution
© EDP Sciences, ESAIM, 2007
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