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Lütke, Benjamin und Nuhn, Johannes und Govers, Yves und Schmidt, Moritz (2016) Design of a Rotor Blade Tip for the Investigation of Dynamic Stall in the Transonic Wind-Tunnel Göttingen. The Aeronautical Journal, 120 (1232), Seiten 1509-1533. Cambridge University Press. doi: 10.1017/aer.2016.74. ISSN 0001-9240.
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Kurzfassung
The aerodynamic and structural design of a pitching blade tip with a double-swept planform is presented. The authors demonstrate how high-fidelity finite element (FE) and computational fluid dynamic (CFD) simulations are successfully used in the design phase. Eigenfrequencies, deformation, and stress distributions are evaluated by means of a three-dimensional (3D) FE model. Unsteady Reynolds-averaged Navier-Stokes (RANS) simulations are compared to experimental data for a light dynamic stall case at Ma = 0.5, Re = 1.2 × 106. The results show a very good agreement as long as the flow stays attached. Tendencies for the spanwise location of separation are captured. As soon as separation sets in, discrepancies between experimental and numerical data are observed. The experimental data show that for light dynamic stall cases at Ma = 0.5, a factor of safety of FoS = 2.0 is sufficient if the presented simulation methods are used.
| elib-URL des Eintrags: | https://elib.dlr.de/106212/ | ||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||
| Titel: | Design of a Rotor Blade Tip for the Investigation of Dynamic Stall in the Transonic Wind-Tunnel Göttingen | ||||||||||||||||||||
| Autoren: |
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| Datum: | Oktober 2016 | ||||||||||||||||||||
| Erschienen in: | The Aeronautical Journal | ||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||
| Band: | 120 | ||||||||||||||||||||
| DOI: | 10.1017/aer.2016.74 | ||||||||||||||||||||
| Seitenbereich: | Seiten 1509-1533 | ||||||||||||||||||||
| Verlag: | Cambridge University Press | ||||||||||||||||||||
| ISSN: | 0001-9240 | ||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||
| Stichwörter: | Structural and aerodynamic design; dynamic stall; helicopter; double-swept rotor blade tip; transonic wind-tunnel; experiment; CFD; FEM | ||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||
| HGF - Programmthema: | Flugzeuge | ||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||
| DLR - Forschungsgebiet: | L AR - Aircraft Research | ||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Flugphysik (alt) | ||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Experimente Institut für Aeroelastik > Strukturdynamik und aeroelastische Systemidentifikation | ||||||||||||||||||||
| Hinterlegt von: | Mai, Holger | ||||||||||||||||||||
| Hinterlegt am: | 28 Nov 2016 15:41 | ||||||||||||||||||||
| Letzte Änderung: | 28 Nov 2023 08:33 |
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