Analysis of truncation errors and design of physically optimized discretizations

Stefan Hickel, Nikolaus A. Adams

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

1 Zitat (Scopus)

Abstract

Further development of Large Eddy Simulation (LES) faces as major obstacle the strong coupling between subgrid-scale (SGS) model and the truncation error of the numerical discretization. Recent analyzes indicate that for certain discretizations and certain flow configurations the truncation error itself can act as implicit SGS model. In this paper, we explore how implicit SGS models can be derived systematically and propose a procedure for design, analysis, and optimization of nonlinear discretizations. Implicit LES can be made rigorous by requiring that the numerical dissipation approximates the SGS dissipation obtained from the analysis of nonlinear interactions in turbulence.

OriginalspracheEnglisch
TitelQuality and Reliability of Large-Eddy Simulations
Redakteure/-innenJohan Meyers, Bernard J. Geurts, Pierre Sagaut
Herausgeber (Verlag)Springer
Seiten49-60
Seitenumfang12
ISBN (Print)9781402085772
DOIs
PublikationsstatusVeröffentlicht - 2008
Veranstaltung1st Meeting on Quality and Reliability of Large-Eddy Simulation, QLES 2007 - Leuven, Belgien
Dauer: 22 Okt. 200724 Okt. 2007

Publikationsreihe

NameERCOFTAC Series
Band12
ISSN (Print)1382-4309
ISSN (elektronisch)2215-1826

Konferenz

Konferenz1st Meeting on Quality and Reliability of Large-Eddy Simulation, QLES 2007
Land/GebietBelgien
OrtLeuven
Zeitraum22/10/0724/10/07

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