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Development of New Two-Component TSP for Cryogenic Testing

Egami, Yasuhiro and Fey, Uwe and Quest, Jürgen (2007) Development of New Two-Component TSP for Cryogenic Testing. 45th AIAA Aerospace Sciences Meeting and Exhibit, 2007-01-08 - 2007-01-11, Reno, Nevada, USA.

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Official URL: http://www.aiaa.org/content.cfm?pageid=320


A two-component TSP for cryogenic wind tunnels has been newly developed to extend the highest working temperature up to 320 K, whereas a conventional single-component cryo-TSP operates in the temperature range from 100 K to 240 K. The two-component cryoTSP includes two luminophores: a Ruthenium complex (Ru(trpy)) and a Europium complex which are very temperature-sensitive in the range of 100 K - 240 K and 220 K - 320 K, respectively. The Ruthenium complex needs blue light and the Europium complex needs UV light to be excited. One can distinguish the two luminophores by illuminating the paint at different wavelengths. In addition, both luminophores emit red light. Therefore, it is possible to use a single camera filter to observe the two luminophores. Verification tests at different wind tunnels proved that the two-component cryoTSP makes ist possible to detect a boundary layer transition line even at room temperatures with a single coating. This means that it is neither necessary to apply another TSP to a model nor to use an IR camera for measurements at room temperatures in a cryogenic wind tunnel. As a result, the two-component cryoTSP enables one to save time and money for testing.

Item URL in elib:https://elib.dlr.de/46238/
Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:Session 152-AMT-4 Optical Diagnostics 1500 AIAA-2007-1062
Title:Development of New Two-Component TSP for Cryogenic Testing
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Quest, JürgenEuropean Transonic Windtunnel (ETW)UNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-11
EditorsEmailEditor's ORCID iDORCID Put Code
American Institue of Aeronautics and Astronautics, UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Series Name:Conference Proceedings online
Keywords:two-component cryoTSP, Ruthenium complex, Europium complex
Event Title:45th AIAA Aerospace Sciences Meeting and Exhibit
Event Location:Reno, Nevada, USA
Event Type:international Conference
Event Dates:2007-01-08 - 2007-01-11
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Micknaus, Ilka
Deposited On:06 Mar 2007
Last Modified:27 Apr 2009 13:20

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