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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)
Title:RANS-Based Laminar-Turbulent Transition Prediction for Airfoil and Rotary Wing Applications Using Semi/Empirical Criteria
Authors:
AuthorsInstitution or Email of Authors
Heister, C.C.christoph.heister@dlr.de
Klein, A.Universität Stuttgart, IAG
Krämer, E.Universität Stuttgart, IAG
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:Rotorcraft
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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