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Hebler, Anne und Thormann, Reik (2016) Flutter Prediction of a Laminar Airfoil Using a Doublet Lattice Method Corrected by Experimental Data. In: New Results in Numerical and Experimental Fluid Mechanics X Notes on Numerical Fluid Mechanics and Multidisciplinary Design, X (132). Springer International Publishing Switzerland 2016. Seiten 445-455. doi: 10.1007/978-3-319-27279-5_39. ISBN 978-3-319-27278-8 (Print), 978-3-319-27279-5 (Online). ISSN 1612-2909.
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Offizielle URL: http://link.springer.com/chapter/10.1007/978-3-319-27279-5_39
Kurzfassung
In this paper a stability analysis of a laminar airfoil is presented and compared to turbulent flow conditions. The flutter system with the two degrees-of-freedom heave and pitch is introduced. The aerodynamic derivatives due to a pitch motion are identified experimentally and two Doublet Lattice correction methods are used to determine the aerodynamic derivatives due to a heave motion. The correction is applied to the local pressure distributions and includes nonlinearities due to transonic flow as well as transitional effects. The resulting aerodynamic derivatives reflect the differences between laminar and turbulent flow as measured in the experiment. An influence of the mean angle-of-attack on the stability boundary is shown for free transition. A comparison of the flutter boundaries for free and fixed transition exhibits a lower transonic dip for free transition. One-degree-of-freedom flutter is found only for free transition.
| elib-URL des Eintrags: | https://elib.dlr.de/107249/ | ||||||||||||||||||||||||
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| Dokumentart: | Beitrag im Sammelband | ||||||||||||||||||||||||
| Titel: | Flutter Prediction of a Laminar Airfoil Using a Doublet Lattice Method Corrected by Experimental Data | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2016 | ||||||||||||||||||||||||
| Erschienen in: | New Results in Numerical and Experimental Fluid Mechanics X | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Band: | X | ||||||||||||||||||||||||
| DOI: | 10.1007/978-3-319-27279-5_39 | ||||||||||||||||||||||||
| Seitenbereich: | Seiten 445-455 | ||||||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer International Publishing Switzerland 2016 | ||||||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||
| ISSN: | 1612-2909 | ||||||||||||||||||||||||
| ISBN: | 978-3-319-27278-8 (Print), 978-3-319-27279-5 (Online) | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Flattervorhersage, Laminarprofil, DLM, Experimentelle Daten | ||||||||||||||||||||||||
| 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 - Simulation und Validierung (alt) | ||||||||||||||||||||||||
| Standort: | Göttingen | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aeroelastik > Aeroelastische Experimente | ||||||||||||||||||||||||
| Hinterlegt von: | Hebler, Anne | ||||||||||||||||||||||||
| Hinterlegt am: | 28 Nov 2016 15:48 | ||||||||||||||||||||||||
| Letzte Änderung: | 28 Mär 2023 23:46 |
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