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Active control of crossflow-induced transition by means of in-line pneumatic actuator orifices

Lohse, Jakob and Barth, Hans Peter and Nitsche, W. (2016) Active control of crossflow-induced transition by means of in-line pneumatic actuator orifices. Experiments in Fluids. Springer. ISSN 0723-4864

Full text not available from this repository.

Official URL: http://link.springer.com/journal/348

Abstract

The possibility of a pneumatic actuator system for controlling the crossflow vortex induced laminar breakdown is investigated by means of hot-wire measurements. Steady blowing or suction through a spanwise row of periodically arranged orifices initiates a system of longitudinal vortices which reduces the amplitude of the most amplified stationary crossflow vortices. Thus the onset of high frequency secondary instability and the following laminar-turbulent transition was shifted farther downstream. All experiments were conducted at the redesigned DLR swept-flat-plate experiment in the open test section of the 1m wind tunnel at the DLR in Göttingen.

Item URL in elib:https://elib.dlr.de/103461/
Document Type:Article
Additional Information:Online veröffentlicht:19.07.2016 Volume 7, Issue 8: gedruckt 26.08.2016
Title:Active control of crossflow-induced transition by means of in-line pneumatic actuator orifices
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lohse, Jakobjakob.lohse (at) ilr.tu-berlin.deUNSPECIFIED
Barth, Hans Peterpeter.barth (at) dlr.deUNSPECIFIED
Nitsche, W.UNSPECIFIEDUNSPECIFIED
Date:2016
Journal or Publication Title:Experiments in Fluids
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Publisher:Springer
ISSN:0723-4864
Status:Published
Keywords:transition control, pneumatic actuator, crossflow instability, transition to turbulence, crossflow reference experiment
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: Bachmann, Barbara
Deposited On:04 Jan 2017 10:42
Last Modified:10 Jan 2019 15:52

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