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Kaufmann, Kurt und Müller, Martin Michael und Gardner, Anthony (2020) Dynamic Stall Computations of Double-Swept Rotor Blades (Vollbeitrag). In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, Seiten 351-361. Springer Nature. 21. STAB/DGLR Symposium 2018, 2018-11-06 - 2018-11-07, Darmstadt. doi: 10.1007/978-3-030-25253-3_34. ISBN 978-3-030-25252-6. ISSN 1612-2909.
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Offizielle URL: https://doi.org/10.1007/978-3-030-25253-3_34
Kurzfassung
A new design of a Mach-scaled double-swept rotor configuration is investigated by means of unsteady Reynolds-averaged Navier-Stokes computations using the DLR-TAU Code. The investigated rotor frequency of 23.6 Hz results in a Reynolds number of 350,000 and a Mach number of 0.21 at 75% radius. Two highly resolved dynamic stall cases with a sinusoidal pitching are considered and the results are compared to similar numerical computations using a parabolic blade-tip. The flow generated by the double-swept rotor configuration first stalls in the vicinity of the blade-tip, whereas for the parabolic blade-tip the stall process starts further inboard. In addition, the flow field of the double-swept rotor can be separated into two parts: outboard and inboard of the double-swept region. The lift inboard at r/R = 0.70 starts to stall at Theta_root = 32.9° and is delayed compared to the outboard region at r/R = 0.90, where lift stall occurs at Theta_root = 30.9°.
| elib-URL des Eintrags: | https://elib.dlr.de/120749/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
| Zusätzliche Informationen: | Print ISBN 978-3-030-25252-6 Online ISBN 978-3-030-25253-3 ISSN-electronic 1860-0824 | ||||||||||||||||||||||||||||
| Titel: | Dynamic Stall Computations of Double-Swept Rotor Blades (Vollbeitrag) | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2020 | ||||||||||||||||||||||||||||
| Erschienen in: | 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics | ||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
| Band: | 142 | ||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-030-25253-3_34 | ||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 351-361 | ||||||||||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer Nature | ||||||||||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||||||||||
| ISBN: | 978-3-030-25252-6 | ||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||
| Stichwörter: | CFD, dynamic stall, helicopter aerodynamics | ||||||||||||||||||||||||||||
| Veranstaltungstitel: | 21. STAB/DGLR Symposium 2018 | ||||||||||||||||||||||||||||
| Veranstaltungsort: | Darmstadt | ||||||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
| Veranstaltungsbeginn: | 6 November 2018 | ||||||||||||||||||||||||||||
| Veranstaltungsende: | 7 November 2018 | ||||||||||||||||||||||||||||
| Veranstalter : | STAB/DGLR | ||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||
| HGF - Programmthema: | Hubschrauber | ||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L RR - Rotorcraft Research | ||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Der virtuelle Drehflügler (alt) | ||||||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Hubschrauber, GO Institut für Aeroelastik > Aeroelastische Experimente | ||||||||||||||||||||||||||||
| Hinterlegt von: | Winkels, Elisabeth | ||||||||||||||||||||||||||||
| Hinterlegt am: | 15 Nov 2018 11:59 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 24 Apr 2024 20:24 |
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