Fey, Uwe and Egami, Yasuhiro and Iijima, Y. and Asai, K. and Jansen, U. and Quest, Jürgen (2003) Transition Detection by Temperature Sensitive Paint at Cryogenic Temperatures in the European Transonic Wind Tunnel (ETW). IEEE. 20th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF 2003), 2003-08-25 - 2003-08-29, Göttingen (Germany). ISBN 0-7803-8149-1.
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The identification of laminar-turbulent boundary layer transition on wind tunnel models provides essential data for modern wing design. However, simulating true flight Reynolds numbers with scaled models requires the use of cryogenic wind tunnels. Transition detection in ‘warm’ wind tunnels can be realized using commercially available IR cameras. In parallel, the temperature sensitive paint (TSP) technique is well established as an additional tool. In cryogenic testing, IR imaging becomes more difficult because of the reduction in radiated energy and the shift to longer wavelengths. Therefore, the TSP technique has become a promising alternative here. However, applying temperature sensitive paint in a large-scale cryogenic wind tunnel like the European Transonic Wind tunnel (ETW) needs specific modification of existing TSP formulations. Cooperative tests in the ETW therefore were performed by DLR and NAL (Japan). In these measurements, NAL’s paint and DLR’s mobile PSP/TSP system for data acquisition and evaluation were used. Some efforts were made to adapt the system to specific conditions given at the ETW wind tunnel. So for the first time it was successfully realized to perform a TSP luminescent paint test at cryogenic temperatures in a commercial wind tunnel.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Transition Detection by Temperature Sensitive Paint at Cryogenic Temperatures in the European Transonic Wind Tunnel (ETW)|
|In ISI Web of Science:||No|
|Page Range:||pp. 77-88|
|Series Name:||Conference Proceedings ICIASF 2003 Record|
|Keywords:||temperature sensitive paint, TSP, cryogenic windtunnel, ETW, transition detection, cryo TSP, cryogenic testing, DLR mobile PSP system, European Transonic Windtunnel, thermal quenching, new measurement techniques|
|Event Title:||20th International Congress on Instrumentation in Aerospace Simulation Facilities (ICIASF 2003)|
|Event Location:||Göttingen (Germany)|
|Event Type:||international Conference|
|Event Dates:||2003-08-25 - 2003-08-29|
|HGF - Research field:||Aeronautics, Space and Transport (old)|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Experimental Methods|
|Deposited By:||Ilka Micknaus|
|Deposited On:||20 Dec 2005|
|Last Modified:||14 Jan 2010 18:14|
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