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) Receptivity coefficients of vortex-vibrational type at excitation of 3D Tollmien-Schlichting waves in a boundary layer on a swept wing. AIP Conference Proceedings, 2125 (030044), Seiten 1-7. American Institute of Physics (AIP). doi: 10.1063/1.5117426. ISSN 0094-243X.
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Offizielle URL: https://doi.org/10.1063/1.5117426
Kurzfassung
The paper is devoted to the first results of an experimental quantitative study of the receptivity mechanism of a swept-wing laminar boundary layer related to scattering of 2D freestream vortices (with frequency fv) at 3D local surface vibrations (with frequency fs) resulting in an excitation of Tollmien-Schlichting (TS) waves (having combination frequencies f+ = fs + fv and f- = fs - fv). The experiments were carried out in a low-turbulence level wind tunnel on a high-precision experimental model of long-laminar-run swept airfoil (sweep angle of 35°) at a freestream speed of about 10 m/s. Controlled localized 3D surface vibrations and 2D freestream vortices were generated by special disturbance sources. Quantitative characteristics of the studied receptivity mechanism (receptivity coefficients) were estimated.
elib-URL des Eintrags: | https://elib.dlr.de/127213/ | ||||||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||
Titel: | Receptivity coefficients of vortex-vibrational type at excitation of 3D Tollmien-Schlichting waves in a boundary layer on a swept wing | ||||||||||||||||||||||||||||||||
Autoren: |
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Datum: | 26 Juli 2019 | ||||||||||||||||||||||||||||||||
Erschienen in: | AIP Conference Proceedings | ||||||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
Band: | 2125 | ||||||||||||||||||||||||||||||||
DOI: | 10.1063/1.5117426 | ||||||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1-7 | ||||||||||||||||||||||||||||||||
Herausgeber: |
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Verlag: | American Institute of Physics (AIP) | ||||||||||||||||||||||||||||||||
ISSN: | 0094-243X | ||||||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
Stichwörter: | laminar-turbulent transition, receptivity, EU project RECEPT | ||||||||||||||||||||||||||||||||
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: | 08 Aug 2019 14:34 | ||||||||||||||||||||||||||||||||
Letzte Änderung: | 20 Jun 2021 15:52 |
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