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RANS-Based Laminar-Turbulent Transition Prediction for Airfoil and Rotary Wing Applications Using Semi/Empirical Criteria
Heister, C.C. and Klein, A. and Krämer, E. (2010) RANS-Based Laminar-Turbulent Transition Prediction for Airfoil and Rotary Wing Applications Using Semi/Empirical Criteria. STAB-Symposium 2010, 09.-10.11.2010, Berlin.
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Abstract
The transition prediction capability of two different semi/empirical methods originating from fixed wing applications is studied for steady, rotary wing application. This includes the AHD method, used with approximated boundary layer data, as well as the Drela eN envelope method, based on integral boundary layer parameters. The methods have been implemented in the DLR's structured flow solver FLOWer. A two-dimensional test case (Somers airfoil) and three-dimensional rotor test case at hover (DLR Bo 105 flight test ) serve to validate the computed transition locations.
| Document Type: | Conference or Workshop Item (Speech) | ||||||||
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| Title: | RANS-Based Laminar-Turbulent Transition Prediction for Airfoil and Rotary Wing Applications Using Semi/Empirical Criteria | ||||||||
| Authors: |
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| Date: | November 2010 | ||||||||
| Keywords: | helicopter, rotor, hover, transition, laminar, boundary layer, empirical, AHD, Drela, eN, Blasius, Thwaites | ||||||||
| Event Title: | STAB-Symposium 2010 | ||||||||
| Event Location: | Berlin | ||||||||
| Event Type: | national Conference | ||||||||
| Event Dates: | 09.-10.11.2010 | ||||||||
| Organizer: | STAB | ||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||
| HGF - Program: | Aeronautics | ||||||||
| HGF - Program Themes: | L RR - Rotorcraft Research | ||||||||
| DLR - Research area: | Aeronautics | ||||||||
| DLR - Program: | L RR - Rotorcraft Research | ||||||||
| DLR - Research theme (Project): | L - The Virtual Aerodynamic Rotorcraft | ||||||||
| Location: | Braunschweig | ||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering | ||||||||
| Deposited By: | Christoph Heister | ||||||||
| Deposited On: | 06 Dec 2012 15:55 | ||||||||
| Last Modified: | 06 Dec 2012 15:55 |
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