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Borodulin, V. I. and Ivanov, A. V. and Kachanov, Y. S. and Mischenko, D. A. and Örlü, R. and Hanifi, A. and 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), pp. 1-7. American Institute of Physics (AIP). doi: 10.1063/1.5117426. ISSN 0094-243X.
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Official URL: https://doi.org/10.1063/1.5117426
Abstract
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.
| Item URL in elib: | https://elib.dlr.de/127213/ | ||||||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||||||
| Title: | Receptivity coefficients of vortex-vibrational type at excitation of 3D Tollmien-Schlichting waves in a boundary layer on a swept wing | ||||||||||||||||||||||||||||||||
| Authors: |
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| Date: | 26 July 2019 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | AIP Conference Proceedings | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
| Volume: | 2125 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1063/1.5117426 | ||||||||||||||||||||||||||||||||
| Page Range: | pp. 1-7 | ||||||||||||||||||||||||||||||||
| Editors: |
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| Publisher: | American Institute of Physics (AIP) | ||||||||||||||||||||||||||||||||
| ISSN: | 0094-243X | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | laminar-turbulent transition, receptivity, EU project RECEPT | ||||||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||
| HGF - Program Themes: | fixed-wing aircraft | ||||||||||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||||||||||||||
| DLR - Research theme (Project): | L - Flight Physics (old) | ||||||||||||||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO | ||||||||||||||||||||||||||||||||
| Deposited By: | Hein, Dr.-Ing. Stefan | ||||||||||||||||||||||||||||||||
| Deposited On: | 08 Aug 2019 14:34 | ||||||||||||||||||||||||||||||||
| Last Modified: | 21 Jan 2025 11:28 |
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