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Correlation-based Transition Transport Modeling for Three-dimensional Aerodynamic Configurations

Seyfert, Cornelia und Krumbein, Andreas (2012) Correlation-based Transition Transport Modeling for Three-dimensional Aerodynamic Configurations. 50th AIAA Aerospace Sciences Meeting, 09. - 12. Jan. 2012, Nashville, TN, USA.

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Kurzfassung

The correlation-based gamma-Rethetat transition transport model was implemented into a hybrid Reynolds-Averaged Navier-Stokes solver and validated on various test cases. The gamma-Rethetat model predicts two-dimensional transition phenomena such as transition due to Tollmien-Schlichting instabilities and separation-induced transition. The present work includes results for the application of the gamma-Rethetat model to two three-dimensional test cases, which are the 6:1 inclined prolate spheroid and the ONERA M6 wing. Depending on the flow conditions, the computational results are in good agreement with the experimental data. Once, the given flow conditions lead to three-dimensional transition phenomena, the transition prediction with the gamma-Rethetat model is not reliable, because the model is based on the characteristics of two-dimensional boundary layers and three-dimensional transition mechanisms are not taken into account. In order to close this gap, the gamma-Rethetat model was extended by an approach which accounts for transition due to crossflow-instabilities in three-dimensional boundary layers. This approach and its implementation into the original model are introduced in this paper. First results for the flow over two different infinite swept wing configurations which are the ONERA D wing and the NLF(2)-0415 wing are presented.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Zusätzliche Informationen:Vortrag wurde von Dr. Krumbein gehalten.
Titel:Correlation-based Transition Transport Modeling for Three-dimensional Aerodynamic Configurations
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Seyfert, Corneliacornelia.seyfert@dlr.de
Krumbein, Andreasandreas.krumbein@dlr.de
Datum:10 Januar 2012
Referierte Publikation:Nein
In ISI Web of Science:Nein
Name der Reihe:Conference Proceedings online
Status:veröffentlicht
Stichwörter:CFD, transition model, crossflow instability
Veranstaltungstitel:50th AIAA Aerospace Sciences Meeting
Veranstaltungsort:Nashville, TN, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:09. - 12. Jan. 2012
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Simulation & Validierung
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Hinterlegt von: Dr. Cornelia Grabe
Hinterlegt am:14 Feb 2012 09:57
Letzte Änderung:12 Dez 2013 21:37

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