A wall model based on simplified thin boundary layer equations for implicit Large Eddy Simulation of turbulent channel flow

Zhenli Chen, Antoine Devesa, Stefan Hickel, Christian Stemmer, Nikolaus A. Adams

Publikation: Beitrag in Buch/Bericht/KonferenzbandKapitelBegutachtung

Abstract

In order to perform implicit Large Eddy Simulation (LES) of high Reynolds number wall-bounded flows, a wall model based on simplified Thin Boundary Layer Equations (TBLE) is designed and applied to turbulent channel flow for a wide range of friction Reynolds numbers up to Re τ =20,000. The prediction capability of the employed wall model concerning mean velocities and Reynolds stresses is satisfactory, even on very coarse LES grids. The coupling position between the simplified TBLE model and the LES should be located at the bottom of the logarithmic region. The grid resolution requirement depends mainly on the embedded TBLE grids and is only weakly dependent on the Reynolds number.

OriginalspracheEnglisch
TitelNew Results in Numerical and Experimental Fluid Mechanics VII
UntertitelContributions to the 16th STAB/DGLR Symposium Aachen, Germany 2008
Redakteure/-innenAndreas Dillmann, Gerd Heller, Michael Klaas, Wolfgang Schroder, Hans-Peter Kreplin, Wolfgang Nitsche
Seiten59-66
Seitenumfang8
DOIs
PublikationsstatusVeröffentlicht - 2010

Publikationsreihe

NameNotes on Numerical Fluid Mechanics and Multidisciplinary Design
Band112
ISSN (Print)1612-2909

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