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Reattaching Flow Behind a Forward-Backward Facing Step lnvestigated with Temperature-Sensitive Paint

Lemarechal, Jonathan and Mäteling, Esther and Klein, Christian and Puckert, Dominik and Rist, U. (2018) Reattaching Flow Behind a Forward-Backward Facing Step lnvestigated with Temperature-Sensitive Paint. In: NOTES ON NUMERICAL FLUID MECHANICS (136), pp. 285-293. Springer International Publishing AG. 20th STAB/DGLR Symposium Braunschweig, Germany 2016, 08.-09. Nov. 2016, Braunschweig, Deutschland. DOI: 10.1007/978-3-319-64519-3 ISBN 978-3-319-64518-6 ISSN 1612-2909

Full text not available from this repository.

Official URL: https://doi.org/10.1007/978-3-319-64519-3_26

Abstract

The flow features developing in the presence of a twodimensional forward-backward facing step of small width are visualized. The flow visualizations were conducted by means of Temperature- Sensitive Paint (TSP). The tests were conducted in the Laminarwasserkanal (laminar water channel) at the Institute for Aerodynamics and Gas dynamics (IAG) in Stuttgart. A step Reynolds number Rek from 199 up to 1890 enables the investigation of laminar, transitional and turbulent reattachrnent of the flow. The variations of flow separation and impinging structures related to reattachrnent are well captured by the TSP technique. The TSP method requires a temperature difference between the model surface and the flow to visualize flow phenomena. This temperature difference alters the flow structures around the forward-backward facing step for low Reynolds numbers by inducing buoyancy forces in the boundary layer and recirculation zone.

Item URL in elib:https://elib.dlr.de/117944/
Document Type:Conference or Workshop Item (Speech)
Additional Information:ISSN (electronic): 1860-0824; ISBN ( eBook): 978-3-319-64519-3; https://doi.org/10.1007/978-3-319-64519-3
Title:Reattaching Flow Behind a Forward-Backward Facing Step lnvestigated with Temperature-Sensitive Paint
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lemarechal, JonathanJonathan.Lemarechal (at) dlr.deUNSPECIFIED
Mäteling, EstherRWTH AachenUNSPECIFIED
Klein, ChristianChristian.Klein (at) dlr.deUNSPECIFIED
Puckert, DominikUniversität StuttgartUNSPECIFIED
Rist, U.Uni StuttgartUNSPECIFIED
Date:2018
Journal or Publication Title:NOTES ON NUMERICAL FLUID MECHANICS
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
DOI :10.1007/978-3-319-64519-3
Page Range:pp. 285-293
Editors:
EditorsEmail
Dillmann, AndreasDLR, Göttingen
Heller, GerdAirbus, Bremen
Krämer, EwaldUNI Stuttgart
Wagner, ClausDLR, Göttingen
Bansmer, StephanTU Braunschweig
Radespiel, RolfTU Braunschweig
Semaan, RichardTU Braunschweig
Publisher:Springer International Publishing AG
Series Name:New Results in Numerical and Experimental Fluid Mechanics XI
ISSN:1612-2909
ISBN:978-3-319-64518-6
Status:Published
Keywords:Temperature-Sensitive Paint, TSP, waterTSP, Forward-Backward-Facing Step, Flow Separation, low Reynolds number
Event Title:20th STAB/DGLR Symposium Braunschweig, Germany 2016
Event Location:Braunschweig, Deutschland
Event Type:national Conference
Event Dates:08.-09. Nov. 2016
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
Deposited By: Bachmann, Barbara
Deposited On:23 Jan 2018 14:11
Last Modified:05 Sep 2018 15:04

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