Tell a friend
Print
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) Experimental and theoretical study of swept-wing boundary-layer instabilities. Three-dimensional Tollmien-Schlichting instability. Physics of Fluids, 31 (11), p. 114104. American Institute of Physics (AIP). doi: 10.1063/1.5125812. ISSN 1070-6631.
![[img]](https://elib.dlr.de/style/images/fileicons/application_pdf.png) |
PDF
- Published version
5MB |
Official URL: https://aip.scitation.org/doi/10.1063/1.5125812
Abstract
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.
| Item URL in elib: | https://elib.dlr.de/128826/ | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Document Type: | Article | ||||||||||||||||||||||||||||||||
| Title: | Experimental and theoretical study of swept-wing boundary-layer instabilities. Three-dimensional Tollmien-Schlichting instability | ||||||||||||||||||||||||||||||||
| Authors: |
| ||||||||||||||||||||||||||||||||
| Date: | 18 November 2019 | ||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Physics of Fluids | ||||||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||||||
| Volume: | 31 | ||||||||||||||||||||||||||||||||
| DOI: | 10.1063/1.5125812 | ||||||||||||||||||||||||||||||||
| Page Range: | p. 114104 | ||||||||||||||||||||||||||||||||
| Editors: |
| ||||||||||||||||||||||||||||||||
| Publisher: | American Institute of Physics (AIP) | ||||||||||||||||||||||||||||||||
| ISSN: | 1070-6631 | ||||||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||||||
| Keywords: | laminar-turbulent transition, swept wing, hot-wire anemometry, local and nonlocal linear instability analysis, LST, PSE | ||||||||||||||||||||||||||||||||
| 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: | 21 Nov 2019 14:14 | ||||||||||||||||||||||||||||||||
| Last Modified: | 20 Jun 2021 15:52 |
Repository Staff Only: item control page
