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Numerical and Experimental Realization of an Infinite-Swept-Wing Boundary-Layer Flow in a Wind Tunnel

Hanifi, Ardeshir and Hein, Stefan and Romano, D. G. and Minervino, M. and Würz, W. and Borodulin, V. I. and Ivanov, A. V. and Kachanov, Y. S. (2014) Numerical and Experimental Realization of an Infinite-Swept-Wing Boundary-Layer Flow in a Wind Tunnel. 17th International Conference on the Methods of Aerophysical Research, 30. June - 06. July 2014, Novosibirsk, Russia. ISBN 978-5-9905592-8-8

Full text not available from this repository.

Official URL: http://conf.nsc.ru/icmar2014

Abstract

Transition to turbulence in boundary layer flows is a process involving several steps: receptivity to ambient disturbances, linear and non-linear disturbance growth, non-linear breakdown and turbulent spot or wedge formation and growth, and finally the establishment of the fully turbulent boundary layer. Ambient disturbances may be in the form of free stream turbulence or sound, but also vibrations of the surface as well as surface roughness may have a distinct role in setting up the initial conditions for further disturbance development. The details of the transition process depend on if the base flow is two- or three- dimensional, whether the flow is subjected to a pressure gradient (favorable or adverse) or not, and if the surface has a curvature (convex or concave) or is flat. Although many steps in the process of these different cases are fairly well understood, the receptivity is in all cases the least researched as well as least understood mechanism, despite the fact that it defines the starting point for the further development of the disturbance field.

Item URL in elib:https://elib.dlr.de/89751/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical and Experimental Realization of an Infinite-Swept-Wing Boundary-Layer Flow in a Wind Tunnel
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hanifi, ArdeshirSwedish Defence Research Agency, FOI, SE-164 90, Stockholm, SwedenUNSPECIFIED
Hein, Stefanstefan.hein (at) dlr.deUNSPECIFIED
Romano, D. G.4Piaggio Aero Industries S.p.A., 34, Via Campi Flegrei, 80078 Pozzuoli (NA), ItalyUNSPECIFIED
Minervino, M.Piaggio Aero Industries S.p.A., 34, Via Campi Flegrei, 80078 Pozzuoli (NA), ItalyUNSPECIFIED
Würz, W.Institut für Aerodynamik u. Gasdynamik, D-70550 Stuttgart, GermanyUNSPECIFIED
Borodulin, V. I.Institute of Theoretical and Applied Mechanics, Novosibirsk, 630090, RussiaUNSPECIFIED
Ivanov, A. V.Institute of Theoretical and Applied Mechanics, Novosibirsk, 630090, RussiaUNSPECIFIED
Kachanov, Y. S.Institute of Theoretical and Applied Mechanics, Novosibirsk, 630090, RussiaUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-8
Series Name:Conference Proceedings online
ISBN:978-5-9905592-8-8
Status:Published
Keywords:laminar-turbulent transition, subsonic, swept-wing, receptivity
Event Title:17th International Conference on the Methods of Aerophysical Research
Event Location:Novosibirsk, Russia
Event Type:international Conference
Event Dates:30. June - 06. July 2014
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 - Military Technologies
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Hein, Dr.-Ing. Stefan
Deposited On:17 Dec 2014 14:58
Last Modified:27 Feb 2019 12:24

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