Eisfeld, Bernhard and Knopp, Tobias and Calvo, Javier Bartolome (2008) Anwendung einer neuen Erweiterung für k-ω-Turbulenzmodelle zur Berücksichtigung von Wandrauhigkeit auf Strömungen mit Ablösung. 16. DGLR/STAB-Symposium, 2008-11-03 - 2008-11-04, Aachen. (Unpublished)
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Abstract
The roughness extension of Knopp, Eisfeld and Calvo (2009) for k-ω type turbulence models has been applied to the flow through rough pipes, over a flat plate and around the NACA 65<sub>2</sub>-215 airfoil with a rough surface. The results are compared to predictions using the boundary condition originally devised by Wilcox (1988) for rough surfaces, and to predictions with the Spalart-Allmaras model with the Boeing roughness extension by Aupoix and Spalart (2003). 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.
Item URL in elib: | https://elib.dlr.de/57117/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||
Additional Information: | Nur Vortrag, Veröffentlichung im Konferenzband erfolgt getrennt | ||||||||||||||||
Title: | Anwendung einer neuen Erweiterung für k-ω-Turbulenzmodelle zur Berücksichtigung von Wandrauhigkeit auf Strömungen mit Ablösung | ||||||||||||||||
Authors: |
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Date: | 3 November 2008 | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Status: | Unpublished | ||||||||||||||||
Keywords: | Turbulence modeling, RANS, roughness, k-omega models | ||||||||||||||||
Event Title: | 16. DGLR/STAB-Symposium | ||||||||||||||||
Event Location: | Aachen | ||||||||||||||||
Event Type: | national Conference | ||||||||||||||||
Event Start Date: | 3 November 2008 | ||||||||||||||||
Event End Date: | 4 November 2008 | ||||||||||||||||
Organizer: | DGLR/STAB | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||
DLR - Research theme (Project): | L - Concepts & Integration (old) | ||||||||||||||||
Location: | Braunschweig , Göttingen | ||||||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > CASE | ||||||||||||||||
Deposited By: | Eisfeld, Dr.-Ing. Bernhard | ||||||||||||||||
Deposited On: | 06 Jan 2009 | ||||||||||||||||
Last Modified: | 24 Apr 2024 19:21 |
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