Nitzsche, Jens und Otte, Jonathan und Kaiser, Christoph und Hennings, Holger (2022) The Effect of Shock Control Bumps on the Transonic Flutter and Buffeting Characteristics of a Typical Wing Section. In: 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022. International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2022, 2022-06-13 - 2022-06-17, Madrid, Spanien. ISBN 978-840942353-8.
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Kurzfassung
We investigate the effects of small-scale airfoil geometry modifications, in particular so-called shock control bumps (SCB), on the transonic flutter and buffeting behavior of a classical two-degree-of-freedom model employing linearized stability analysis. The unsteady aerodynamic forces are modelled by solving the discretized RANS equations with respect to small-perturbation mesh deformation input. Special emphasis is put on the coupling of fluid modes and structural modes. SCBs that are designed initially towards purely aerodynamic buffet suppression perform also well in the aeroelastic analysis with respect to fluid-mode flutter. Classical flutter and buffeting are found to be separated by an apparent wall of stability. It is further noted that SCBs can potentially serve to improve the classical flutter behavior in the transonic dip region.
elib-URL des Eintrags: | https://elib.dlr.de/188433/ | ||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||
Titel: | The Effect of Shock Control Bumps on the Transonic Flutter and Buffeting Characteristics of a Typical Wing Section | ||||||||||||||||||||
Autoren: |
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Datum: | Juni 2022 | ||||||||||||||||||||
Erschienen in: | 19th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2022 | ||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||
ISBN: | 978-840942353-8 | ||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||
Stichwörter: | unsteady aerodynamics, transonic dip, transonic buffet, fluid-mode flutter, flow separation, shock control bump | ||||||||||||||||||||
Veranstaltungstitel: | International Forum on Aeroelasticity and Structural Dynamics (IFASD) 2022 | ||||||||||||||||||||
Veranstaltungsort: | Madrid, Spanien | ||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||
Veranstaltungsbeginn: | 13 Juni 2022 | ||||||||||||||||||||
Veranstaltungsende: | 17 Juni 2022 | ||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||||||||||
HGF - Programmthema: | Effizientes Luftfahrzeug | ||||||||||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
DLR - Forschungsgebiet: | L EV - Effizientes Luftfahrzeug | ||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugzeugtechnologien und Integration, L - Virtuelles Flugzeug und Validierung | ||||||||||||||||||||
Standort: | Göttingen | ||||||||||||||||||||
Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Simulation | ||||||||||||||||||||
Hinterlegt von: | Nitzsche, Jens | ||||||||||||||||||||
Hinterlegt am: | 23 Sep 2022 17:54 | ||||||||||||||||||||
Letzte Änderung: | 24 Apr 2024 20:49 |
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