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Development of new two-component temperature-sensitive paint (TSP) for cryogenic testing

Egami, Yasuhiro and Fey, Uwe and Klein, Christian and Quest, Jürgen and Ondrus, Vladimir and Beifuss, Uwe (2012) Development of new two-component temperature-sensitive paint (TSP) for cryogenic testing. Measurement Science and Technology, 23 (11), pp. 1-10. IOP PUBLISHING. DOI: http://dx.doi.org/10.1088/0957-0233/23/11/115301. ISSN 0957-0233.

Full text not available from this repository.

Official URL: http://stacks.iop.org/MST/23/115301


Two-component temperature-sensitive paint (TSP) for cryogenic wind tunnels has been newly developed to extend the highest working temperature up to 320 K, whereas a conventional single-component cryoTSP operates in the temperature range from 100 to 240 K. The two-component cryoTSP includes two luminophores: a ruthenium complex (Ru(trpy)2) and a europium complex, which are very temperature sensitive in the range of 100–240 K and 220–320 K, respectively. The ruthenium complex is excited by blue light while the europium complex requires UV light. One can thence operate the two luminophores independently by illuminating the paint at different wavelengths. Both luminophores emit red light, so that it is possible to use a single camera filter to observe both luminophores. Verification tests at different cryogenic wind tunnels proved that the two-component cryoTSP could detect a boundary layer transition line even up to room temperatures with only a single coating. This means that it is neither necessary to apply a different TSP coating to a model nor use an infrared camera when the wind tunnel is operated at room temperatures. As a result, the two-component cryoTSP enables one to save time and money in cryogenic testing.

Document Type:Article
Additional Information:Paper 115301
Title:Development of new two-component temperature-sensitive paint (TSP) for cryogenic testing
AuthorsInstitution or Email of Authors
Egami, YasuhiroDepartment of Mechanical Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-Cho,Toyota, Aichi-prefecture 470-0392, Japan
Fey, Uweuwe.fey@dlr.de
Klein, Christianchristian.klein@dlr.de
Quest, JürgenEuropean Transonic Windtunnel (ETW), Ernst-Mach-Strasse, D-51147 Cologne, Germany
Ondrus, VladimirBioorganic Chemistry, Institute of Chemistry, University of Hohenheim, Garbenstr. 30, D-70599 Stuttgart, Germany
Beifuss, UweBioorganic Chemistry, Institute of Chemistry, University of Hohenheim, Garbenstr. 30, D-70599 Stuttgart, Germany
Journal or Publication Title:Measurement Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 1-10
Keywords:temperature-sensitive paint, transition detection, laminar–turbulent flows, cryogenic wind tunnel, aerodynamics, image-based measurement technique, molecular imaging
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:08 Oct 2012 15:44
Last Modified:01 Apr 2015 09:49

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