Richez, Francois and Kaufmann, Kurt and Ströer, Philip and Gardarein, Patrick and Lienard, Caroline and Krimmelbein, Normann and Gardner, Anthony D. (2019) Assessment of Boundary Layer Transition Prediction Methods for Rotating Blades. In: 19th ONERA-DLR Aerospace Symposium (ODAS) 2019. ODAS 2019, 19th ONERA-DLR Aerospace Symposium, 3.-5. Juni 2019, Meudon, France.
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Abstract
Boundary-layer-transition computations are performed using the in-house finite-volume solvers elsA by ONERA and TAU by DLR. Reynolds-averaged Navier-Stokes simulations, using the Langtry-Menter model as well as semiempirical transition criteria, are presented using both solvers for a rotor in climb. The numerical results are compared to temperature-sensitive paint experiments conducted at DLR's rotor test facility. Concerning the Langtry-Menter computation, transition occurs with both solvers due to laminar separation close to the trailing edge, further downstream than seen in the experiment. The transition locations using AHD semi-empirical transition criterion are in good agreement along the entire span in all three considered test cases. In addition, numerical results are presented for a test case with cyclic pitch. These unsteady boundary-layer transition computations are carried out using the semi-empirical transition criteria approach of DLR-TAU. In accordance with the static test cases, the results are promising, as long as the laminar-separation criterion is deactivated.
Item URL in elib: | https://elib.dlr.de/127593/ | ||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||
Title: | Assessment of Boundary Layer Transition Prediction Methods for Rotating Blades | ||||||||||||||||||||||||
Authors: |
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Date: | June 2019 | ||||||||||||||||||||||||
Journal or Publication Title: | 19th ONERA-DLR Aerospace Symposium (ODAS) 2019 | ||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||
Keywords: | Helicopter, Rotor, CFD, Experiment, Boundary Layer Transition | ||||||||||||||||||||||||
Event Title: | ODAS 2019, 19th ONERA-DLR Aerospace Symposium | ||||||||||||||||||||||||
Event Location: | Meudon, France | ||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||
Event Dates: | 3.-5. Juni 2019 | ||||||||||||||||||||||||
Organizer: | DLR, ONERA | ||||||||||||||||||||||||
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 (old) | ||||||||||||||||||||||||
Location: | Braunschweig , Göttingen | ||||||||||||||||||||||||
Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, GO Institute for Aerodynamics and Flow Technology > CASE, GO Institute for Aerodynamics and Flow Technology > CASE, BS | ||||||||||||||||||||||||
Deposited By: | Winkels, Elisabeth | ||||||||||||||||||||||||
Deposited On: | 21 Jun 2019 15:37 | ||||||||||||||||||||||||
Last Modified: | 21 Jun 2019 15:37 |
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