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Nonadiabatic Surface Effects on Transition Measurements Using Temperature-Sensitive Paints

Costantini, Marco and Fey, Uwe and Henne, Ulrich and Klein, Christian (2015) Nonadiabatic Surface Effects on Transition Measurements Using Temperature-Sensitive Paints. AIAA Journal, 53 (5), pp. 1172-1187. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J053155. ISSN 0001-1452.

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Official URL: http://arc.aiaa.org/doi/full/10.2514/1.J053155


Tests were conducted at the Cryogenic Ludwieg-Tube Göttingen (DNW-KRG) to investigate the influence on onset of boundary layer transition of thermal gradients on the model surface, whereby the Temperature-Sensitive Paint technique has been used to detect transition. The laminar airfoil under investigation was tested at high Reynolds and at both low and high subsonic Mach numbers. The influence on boundary layer transition of the temperature difference between flow and model surface due to the temperature drop occurring during a run at DNW-KRG was examined. Various combinations of flow conditions and angles-of-attack were employed in order to investigate different stability situations. The unfavorable impact of surface temperatures larger than the adiabatic wall temperature was identified to be dependent on the considered boundary layer stability situation. For certain stability situations, it was shown that a non-adiabatic model surface can strongly influence the boundary layer transition location.

Item URL in elib:https://elib.dlr.de/84674/
Document Type:Article
Additional Information:Paper 1172, Published online: 12 March 2015
Title:Nonadiabatic Surface Effects on Transition Measurements Using Temperature-Sensitive Paints
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Costantini, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-0642-0199134173712
Klein, ChristianUNSPECIFIEDhttps://orcid.org/0000-0001-7592-6922UNSPECIFIED
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1172-1187
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Temperature-Sensitive Paint, Boundary Layer Transition, Non-Adiabatic Model Surface, Cryogenic Wind Tunnel, DNW-KRG, Ludwieg-Tube
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 (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:06 May 2015 15:13
Last Modified:27 Nov 2023 12:43

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