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A characterization of the flow around a surface mounted cube by TR-PIV and 3D Shake-The-Box

Schröder, Andreas and Schanz, Daniel and Geisler, Reinhard and Jahn, Tobias and Willert, Christian E. and Leclaire, Benjamin and Gallas, Quentin (2019) A characterization of the flow around a surface mounted cube by TR-PIV and 3D Shake-The-Box. In: 13th International Symposium on Particle Image Velocimetry (209), 285 -300. Universität der Bundeswehr München: AtheneForschung. 13th International Symposium on Particle Image Velocimetry, 22.-24.07.2019, Munich, Germany.

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Official URL: https://athene-forschung.unibw.de/128737?sortfield0=authors&sortfield1=&style=full_standard&show_id=129155

Abstract

The flow around a surface mounted cube with incoming turbulent boundary layer has been topic of many experimental and numerical investigations in the past decades. Despite its simple geometry the flow generates a set of complex vortical structures, includes flow separation at the three front plane edges with corresponding subsequent shear layer dynamics and recirculation zones and organizes a large unsteady flow separation region downstream of the cube which is associated with typical quasi-periodic bluff-body wake dynamics. Because of its generic role for geometry induced flow separation and ist complex unsteady vortical properties the flow around a surface mounted cube is often used for benchmarking purposes to validate turbulence models and advanced numerical methods, while an increasing interest of DNS investigations in the recent years including the laminar boundary layer flow case can be registered. Furthermore, the flow configuration is well suited to enhance the understanding of similar unsteady and separated flow phenomena in many aerodynamic and engineering applications. In the present experimental investigation we aim at resolving a large spectrum of spatial and temporal scales in the flow around a cube with incoming laminar and turbulent boundary layers by using the most recent developments of 3D Lagrangian Particle Tracking (LPT) and high resolution TR-PIV. The results are partly documented in the present paper and consist of long time-series of highly resolved 3D and 2D velocity fields as well as unsteady 3D pressure volumes allowing for the analysis of coherent structure dynamics and of corresponding statistical Lagrangian and Eulerian flow properties.

Item URL in elib:https://elib.dlr.de/130593/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Session: 1.3 A 3D Applications II, https://athene-forschung.unibw.de/doc/129117/129117.pdf, Paper-Nr.: 129155 Open-Access-Publikation
Title:A characterization of the flow around a surface mounted cube by TR-PIV and 3D Shake-The-Box
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schröder, Andreasandreas.schroeder (at) dlr.dehttps://orcid.org/0000-0002-6971-9262
Schanz, Danieldaniel.schanz (at) dlr.deUNSPECIFIED
Geisler, Reinhardreinhard.geisler (at) dlr.deUNSPECIFIED
Jahn, Tobiastobias.jahn (at) dlr.deUNSPECIFIED
Willert, Christian E.chris.willert (at) dlr.dehttps://orcid.org/0000-0002-1668-0181
Leclaire, Benjaminbenjamin.leclaire (at) onera.frUNSPECIFIED
Gallas, Quentinquentin.gallas (at) onera.frUNSPECIFIED
Date:July 2019
Journal or Publication Title:13th International Symposium on Particle Image Velocimetry
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:285 -300
Editors:
EditorsEmail
Kähler, Christian J.UniBW München
Hain, RainerUniBW München
Scharnowski, SvenUniBW München
Fuchs, ThomasUniBW München
Publisher:Universität der Bundeswehr München: AtheneForschung
Series Name:Conference Proceedings online
Status:Published
Keywords:Three-dimensional Lagrangian Particle Tracking (LPT), Shake-The-Box (STB), Jet, Turbulence
Event Title:13th International Symposium on Particle Image Velocimetry
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:22.-24.07.2019
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV
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 , Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Institute of Propulsion Technology > Engine Measurement Systems
Deposited By: Micknaus, Ilka
Deposited On:21 Nov 2019 16:48
Last Modified:21 Nov 2019 16:48

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