Japan Aerospace Exploration Agency Wind Tunnel Technology Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency Wind Tunnel Technology Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency Wind Tunnel Technology Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency Wind Tunnel Technology Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency Wind Tunnel Technology Center, Institute of Aerospace Technology
IHI Aerospace Engineering Co. Ltd.
Osaka University Graduate School of Engineering
Tokyo Institute of Technology Graduate School of Science and Engineering
Pressure-Sensitive Paint (PSP) system is a useful measurement tool for acquiring overall pressure images on an aerodynamic model. However, the luminescent intensity of PSP depends on both pressure and temperature. Thereby, Bi-luminophore PSP (bi-PSP) has been developed in order to correct the error due to temperature dependence of the PSP. The bi-PSP contained pressure- and temperature-sensitive dye. Tetranuclear europium (III) complexes and PdTFPP were used as temperature- and pressure-sensitive dye, respectively. The Eu complex was developed as a temperature sensor of the bi-PSP in cooperation with Osaka University. The luminescence intensity of the Eu complex was highly sensitive to temperature and insensitive to pressure. The bi-PSP was examined using a painted coupon and its characteristics were clarified. As a verification test, pressure distributions on a SuperSonic Transport (SST) model at low-speed flow were acquired by the bi-PSP measurement system. The root-mean-square difference of C(sub P) between PSP and tap data at 50 m/s was approximately 0.1 (150 Pa) at flow speed of 50 m/s, indicating that this bi-PSP system can accurately measure pressure as an IR (InfraRed) camera combined PSP system. Furthermore, this bi-PSP system was more convenient rather than an IR combined PSP system for practical use.
複合PSP計測システムの研究開発
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