DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

Semi/empirical Transition Prediction and Application to an Isolated Rotor in Hover

Heister, C.C. (2011) Semi/empirical Transition Prediction and Application to an Isolated Rotor in Hover. 46th Symposium of Applied Aerodynamics, 28.-30. März 2011, Orleans, Frankreich.

WarningThere is a more recent version of this item available.

[img] PDF - Registered users only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader


The transition prediction capability of two semi/empirical methods originating from fixed wing applications is studied for steady, rotary wing application. This includes the AHD criterion, and two variants of the Michel criterion. Both criteria are used with approximated boundary layer data, aiming to reduce dependency on near wall grid quality. The prediction methods have been implemented in the DLR’s structured flow solver FLOWer. A two-dimensional airfoil test case (Somers NLF(1)-0416) is used to study prediction accuracy, comparing three different turbulence models. A three-dimensional rotor test case at hover (DLR Bo 105 flight test) serves to validate the criteria’s computed transition locations. The influence of the criteria’s distinct laminar run-ning lengths on the rotor’s performance is shown by a relative comparison of figure of merit.

Document Type:Conference or Workshop Item (Paper)
Title:Semi/empirical Transition Prediction and Application to an Isolated Rotor in Hover
AuthorsInstitution or Email of AuthorsAuthors ORCID
Heister, C.C.christoph.heister@dlr.deUNSPECIFIED
Date:March 2011
In Open Access:No
In ISI Web of Science:No
Keywords:transition, prediction, empirical, AHD, Michel, boundary layer, approximation, CFD, FLOWer, helicopter, rotor, hover, performance flight test
Event Title:46th Symposium of Applied Aerodynamics
Event Location:Orleans, Frankreich
Event Type:international Conference
Event Dates:28.-30. März 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Heister, Christoph
Deposited On:28 Sep 2011 16:21
Last Modified:12 Dec 2013 21:21

Available Versions of this Item

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.