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Investigation of 3D Coherent Structures in Turbulent Boundary Layers at High Reynolds Numbers using MultiPulse-STB

Voß, Christina and Geisler, Reinhard and Novara, Matteo and Rütten, Markus and Philipp, Florian and Schröder, Andreas (2018) Investigation of 3D Coherent Structures in Turbulent Boundary Layers at High Reynolds Numbers using MultiPulse-STB. In: 21th STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, pp. 170-171. 21. STAB/DGLR Symposium 2018, 6.-7. Nov. 2018, Darmstadt, Deutschland.

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Official URL: https://www.sla.tu-darmstadt.de/stab_2018/stab2018_home.de.jsp

Abstract

Large wall shear stress events in turbulent boundary layers (TBLs) produce significant drag and are organized by the dynamics of coherent structures. In order to achieve a reduction of the turbulent friction drag, the initiation, development and behavior of coherent structures within the TBL must be understood. Therefore, a fundamental research experiment was performed in the Cross Wind Test Facility Göttingen (SWG) at DLR Göttingen, in order to investigate coherent structures at high Reynolds numbers in a TBL generated over a flat plate. For high-resolution studies in the near-wall and logarithmic region, the MultiPulse-Shake-The-Box (MP-STB) measurement technique for 3D Lagrangian Particle Tracking was applied to a zero pressure gradient TBL at a Reynolds number of Reθ = 10, 000.

Item URL in elib:https://elib.dlr.de/123286/
Document Type:Conference or Workshop Item (Speech)
Title:Investigation of 3D Coherent Structures in Turbulent Boundary Layers at High Reynolds Numbers using MultiPulse-STB
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Voß, Christinachristina.voss (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Novara, Matteomatteo.novara (at) dlr.deUNSPECIFIED
Rütten, Markusmarkus.ruetten (at) dlr.deUNSPECIFIED
Philipp, Florianflorian.philipp (at) dlr.deUNSPECIFIED
Schröder, Andreasandreas.schroeder (at) dlr.dehttps://orcid.org/0000-0002-6971-9262
Date:November 2018
Journal or Publication Title:21th STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 170-171
Series Name:Jahresbericht 2018
Status:Published
Keywords:hairpin vortices, coherent structures, turbulent boundary layer, high Reynolds number
Event Title:21. STAB/DGLR Symposium 2018
Event Location:Darmstadt, Deutschland
Event Type:national Conference
Event Dates:6.-7. Nov. 2018
Organizer:Technische Universität Darmstadt
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV, AS- HGK
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 - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO
Deposited By: Micknaus, Ilka
Deposited On:30 Nov 2018 16:25
Last Modified:25 Feb 2019 03:40

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