Borodulin, V. I. und Ivanov, A. V. und Kachanov, Y. S. und Mischenko, D. A. und Örlü, R. und Hanifi, A. und Hein, Stefan (2019) Experimental and theoretical study of swept-wing boundary-layer instabilities. Three-dimensional Tollmien-Schlichting instability. Physics of Fluids, 31 (11), Seite 114104. American Institute of Physics (AIP). doi: 10.1063/1.5125812. ISSN 1070-6631.
PDF
- Verlagsversion (veröffentlichte Fassung)
5MB |
Offizielle URL: https://aip.scitation.org/doi/10.1063/1.5125812
Kurzfassung
Extensive combined experimental and theoretical investigations of the linear evolution of three-dimensional (3D) Tollmien-Schlichting (TS) instability modes of 3D boundary layers developing on a swept airfoil section have been carried out. The flow under consideration is the boundary layer over an airfoil at 35 degrees sweep and an angle of attack of +1.5 degree. At these conditions, TS instability is found to be the predominant one. Perturbations with different frequencies and spanwise wavenumbers are generated in a controlled way using a row of elastic membranes. All experimental results are deeply processed and compared with results of calculations based on theoretical approaches. Very good quantitative agreement of all measured and calculated stability characteristics of swept-wing boundary layers is achieved.
elib-URL des Eintrags: | https://elib.dlr.de/128826/ | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||
Titel: | Experimental and theoretical study of swept-wing boundary-layer instabilities. Three-dimensional Tollmien-Schlichting instability | ||||||||||||||||||||||||||||||||
Autoren: |
| ||||||||||||||||||||||||||||||||
Datum: | 18 November 2019 | ||||||||||||||||||||||||||||||||
Erschienen in: | Physics of Fluids | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||
Band: | 31 | ||||||||||||||||||||||||||||||||
DOI: | 10.1063/1.5125812 | ||||||||||||||||||||||||||||||||
Seitenbereich: | Seite 114104 | ||||||||||||||||||||||||||||||||
Herausgeber: |
| ||||||||||||||||||||||||||||||||
Verlag: | American Institute of Physics (AIP) | ||||||||||||||||||||||||||||||||
ISSN: | 1070-6631 | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | laminar-turbulent transition, swept wing, hot-wire anemometry, local and nonlocal linear instability analysis, LST, PSE | ||||||||||||||||||||||||||||||||
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 Aerodynamik und Strömungstechnik > Hochgeschwindigkeitskonfigurationen, GO | ||||||||||||||||||||||||||||||||
Hinterlegt von: | Hein, Dr.-Ing. Stefan | ||||||||||||||||||||||||||||||||
Hinterlegt am: | 21 Nov 2019 14:14 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 20 Jun 2021 15:52 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags