Research and Development of Bi-luminophore PSP Measurement Systems

Abstract

Bi-luminophore Pressure-Sensitive Paint (bi-PSP) has been developed in order to correct the error due to temperature dependence of PSP and increase PSP measurement accuracy. The bi-PSP was composed of pressure-and temperature-sensitive dye. Tetranuclear europium (III) complexes and PdTFPP were used as temperature-and pressure-sensitive dye, respectively. 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 of Cp at 50m/s was approximately 0.1 (150 Pa) at flow speed of 50m/s, indicating that this bi-PSP system can measure more accurately pressure than conventional pressure conversion technique using reference PSP images immediately after stop of wind tunnel free stream. 1.‚Í ‚ ¶ ‚ß ‚É ‹ß "N,•q ‹ó ‰F 'ˆ •ª-ì ‚Ì "M-¬ 'Ì OEv'ª ‚É‚¨‚¢‚É‚¨‚¢ ‚Ä,Š´ˆ³Š´ˆ³ "h-¿ (Pressure-SensitivePaint:PSP)‚ð-p‚¢ ‚½-Í OE^•\-ʈ³-Í •ê OEv 'ª ‚ª '•-Ú‚ð-•‚Ñ‚Ä‚¢ ‚é1),2).‚± ‚ê ‚Ü‚Å‚Ì "d ŽqŽ® ƒZ ƒ"ƒT•[ ‚É ‚ae ‚é-£ ŽU"I ‚Ȉ³-Í •î •ñ ‚Å‚Í ‚È ‚- ,-Ê ‚ň³-Í •ê ‚ð OEv'ª ‚· ‚é ‚± ‚AE‚ª ‚Å‚« ‚é,‚Ü ‚½,•Ã ˆ³ •E ‚ð •Ý ‚¯ ‚é ‚ae ‚è ‚àŠÈ'P ‚É,‚µ ‚© ‚à ˆÀ‰¿ ‚ÉOEv'ª ‚Å‚« ‚é-˜"_ ‚ª ‚ ‚é.‚µ ‚© ‚µ,PSP‚͈³PSP‚͈³-ÍŠ´"ÍŠ´"x ‚AE "¯ Žž‚ɉ·"xŠ´"xŠ´"x ‚ð-L ‚· ‚é ‚½‚ß,OEv 'ª •¸ "x OEü •ã ‚Ì ‚½‚ß ‚É‚Í ‰· "x •â •³ ‚ª •K-v ‚Å‚ ‚é. JAXA‚Å ‚Í,PSP‚Ì ‰·"xˆË ' ¶ •« ‚ð•â •³ ‚· ‚é ‚½‚ß,PSP/TSP (Temperature-Sensitive Paint:Š´‰·Š´‰·"h-¿)"h ‚蕪 ‚¯ ‚É ‚ae ‚é ‰· "x •â •³ ‚ð •s ‚Á‚Ä‚¢ ‚é3),4).‚± ‚Ì Žè-@‚É ‚ae‚Á‚Ä•¸ "x-Ç ‚-ˆ³-Í •ê ‚ð OEv 'ª ‚· ‚é ‚± ‚AE‚ª ‰Â "\ ‚Å‚ ‚é ‚ª,-Í OE^•Ð'¤ ‚Ì •î •ñ ‚µ‚© "¾‚é ‚± ‚AE‚ª ‚Å‚« ‚¸,‚Ü ‚½‰¡ŠŠ ‚èŠp‚ð ‚AE‚é OE`'Ô‚Ì OEv'ª ‚É'Î ‰ž ‚Å‚« ‚È ‚¢. •ã ‹L-â'è ‚ð ‰ð •Á‚· ‚é ‚½‚ß,•Ô ŠO•ü(Infrared:IR)ƒJ ƒ• ƒ‰ ‚ð-p ‚¢ ‚½PSP‰· "x •â •³ ‚ð ŽŽ‚Ý‚½.PSP‚ª "h '• ‚³ ‚ê ‚½•" •ª ‚Ì ‰·"x•ª •z ‚ð '¼•ÚOEv 'ª ‚· ‚é ‚± ‚AE‚É ‚ae ‚è,OEv'ª •¸ "x ‚ð ‰ü 'P ‚· ‚é ‚± ‚AE ‚ª ‚Å‚« ‚½5).‚µ ‚©‚µ,IRƒJ ƒ• ƒ‰ ‚ð-p ‚¢ ‚é •ê • ‡,ŠÏ 'ª-p OEõ Šw'‹ ƒKƒ‰ ƒX•Þ Ž¿‚Ì • § OEÀ ‚â,"w OEi‰·"x ‚Ì ŽÊ‚è ‚± ‚Ý'Î •ô ‚ª •K-v ‚Å‚ ‚é.‚Ü ‚½PSP‚AEˆÙ‚È‚½PSP‚AEˆÙ‚È ‚é ƒVƒXƒe ƒ€ ‚ð •¹-p ‚· ‚é ‚½‚ß OEv 'ª OEn'S 'Ì ‚Ì ƒn ƒ" ƒhƒŠƒ"ƒO‚ª "Ï ŽG‚É ‚È ‚é ‚AE‚¢ ‚¤-â'è "_ ‚ª ‚ ‚é.‚» ‚Ì ‚½‚ß,IRƒJ ƒ• ƒ‰ ‚ð •¹-p‚µ‚½OEv'ª ƒVƒXƒe ƒ€ ‚Í ŽÀ-p ‚É‚Í •s OEü‚« ‚Å‚ ‚é. ‚± ‚ê ‚ç ‚Ì-â'è ‚ð ‰ð•Á‚· ‚é ‚½‚ß,ˆ³-Í/‰· "x •ê "¯ ŽžOEv'ª-@ ‚Ì ‚Ð ‚AE‚ ‚Å ‚ ‚éPSP‚É Š´‰·Š´‰·•F 'f ‚𠕬 • ‡ ‚µ ‚½•¡ • ‡PSP (Binary Pressure-Sensitive Paint: Bi-PSP)‚É ‚ae‚é OEv'ª ‚ð •s ‚È‚Á‚½.•¡ • ‡PSPOEv 'ª ‚Å‚Í,2Ží-Þ ‚Ì •ª ŽqƒZƒ"ƒT•[ ‚ð-p ‚¢ ‚Ä"¯ ‚ ¶-̈ae ‚̈³‚̈³-Í‚AE ‰·"x ‚ð "¯ Žž ‚ÉOEv'ª ‚· ‚é ‚½‚ß •¸ "x OEü •ã ‚ª Šú'Ò‚Å‚«,‚Ü ‚½PSPOEv 'ª ƒVƒXƒe ƒ€ ‚Å"• ˆê ‚Å‚« ‚é-˜"_ ‚ª ‚ ‚é. ‚±‚ê ‚Ü‚Å‰½ Ží-Þ ‚©‚Ì •¡ • ‡ "h-¿6)‚ðŽŽ•ì ‚µ‚½‚ª,Š´‰·Š´‰·•F'f ‚Ì ‰· "x Š´"Š´"x ‚ª 'á ‚-,•‚ ‚¢ OEv 'ª •¸ "x ‚ð 'B •¬ ‚· ‚é ‚± ‚AE ‚ª ‚Å‚« ‚È ‚©‚Á‚½.‚» ‚± ‚Å,•‚ ‰·"xŠ´"xŠ´"x ‚Ì Š´‰·Š´‰·•F 'f ‚ð ŽÀOE»‚· ‚é ‚½‚ß ‚É, 'å •ã 'å Šw‚AE ‹¤ "¯ ‚Å•¡ • ‡PSP-p •‚ •« "\ ‰·•F 'f ‚Ì ŠJ"-‚ð•s ‚Á‚½.ŠJ "-‚µ‚½•F 'f ‚Ì ‰·"x Š´"Š´"x ‚Í-ñ3%/•‹C‚ ‚è,‰Á ‚¦ ‚Ĉ³-Í Š´"Š´"x ‚ª •¬ ‚³ ‚-,•¡ • ‡PSP‚É "K ‚µ‚Ä‚¢ ‚é.-{ OE¤‹ † ‚Å‚Í,Š´ˆ³Š´ˆ³ •F'f ‚AE‚µ ‚ÄPdTFPP‚ð-p‚¢ ‚Ä•¡ • ‡ ‰» ‚ð •s ‚¢,ƒT ƒ"ƒv ƒ‹ ŽŽOE±‚ð 'Ê ‚µ ‚Ä‚» ‚Ì-L OEø•« ‚É‚Â ‚¢ ‚Ä•] ‰¿‚µ‚½. ‚³ ‚ç ‚É,ŽÀ •ØŽŽOE± ‚É8.5%SST-Í OE^(4ŽŸ OE`•ó)‚ð-p‚¢ ‚Ä'á '¬-¬ ‚ê •ê ' † ‚Ì ƒf ƒ‹ ƒ^-ƒ •\-ʈ³-Í •ê ‚ð OEv 'ª ‚µ,•¡ • ‡PSP‚É ‚ae ‚é ‰· "x •â •³ ‹@"\ ‚Ì-L OEø•« ‚ð ŽÀ•Ø ‚µ‚½. 2.•¡ • ‡PSPOEv 'ª ƒVƒX ƒe ™Ñ 2-1•¡ • ‡PSP-{ŽÀOE± ‚ÅŽg-p‚µ‚½•¡ • ‡PSP‚Í,Š´ˆ³ Š´ˆ³ •F 'f ‚Å‚ ‚éPdTFPP 29