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Application of a New Roughness Extension for k-omega Turbulence Models

Eisfeld, Bernhard and Knopp, Tobias and Calvo, Javier Bartholome (2010) Application of a New Roughness Extension for k-omega Turbulence Models. In: New Results in Numerical and Experimental Fluid Mechanics VII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 112. Springer. pp. 43-50. ISBN 978-3-642-14242-0. ISSN 1612-2909

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Abstract

The roughness extension of Knopp, Eisfeld and Calvo (KEC) for k-omega type turbulence models has been applied to the flow through rough pipes, over a flat plate and around the NACA 65_2-2156 airfoil with a rough surface. The results are compared to predictions with the Spalart-Allmaras model with the Boeing roughness extension by Aupoix and Spalart (ASB). Good agreement with experiments has been achieved with respect to the influence of the roughness on the velocity profile, the skin friction coefficient and the loss in lift.

Document Type:Book Section
Title:Application of a New Roughness Extension for k-omega Turbulence Models
Authors:
AuthorsInstitution or Email of Authors
Eisfeld, Bernhardbernhard.eisfeld@dlr.de
Knopp, Tobiastobias.knopp@dlr.de
Calvo, Javier Bartholomejavier.bartolomecalvo@dlr.de
Date:2010
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics VII
Refereed publication:Yes
In ISI Web of Science:No
Volume:112
Page Range:pp. 43-50
Editors:
EditorsEmail
Dillmann, Andreasandreas.dillmann@dlr.de
Heller, GerdUNSPECIFIED
Klaas, MichaelUNSPECIFIED
Kreplin, Hans-PeterUNSPECIFIED
Nitsche, WolfgangUNSPECIFIED
Schröder, WolfgangUNSPECIFIED
Publisher:Springer
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-642-14242-0
Status:Published
Keywords:Roughness modelling, turbulence modelling, k-omega model
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Dr.-Ing. Bernhard Eisfeld
Deposited On:25 Nov 2010 09:45
Last Modified:25 Nov 2010 09:45

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