Application of PSP to low density gas flows
Application of PSP to low density gas flows
复制标题
PSP 在低密度气流中的应用
DOI：
10.1007/bf03181485
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发表时间：
2004
影响因子：
1.7
通讯作者：
Y. Oshima
中科院分区：
文献类型：
--
作者：
H. Mori;T. Niimi;Masaki Yoshida;M. Kondo;Y. Oshima
近年来，使用压敏漆（PSP）的光学压力测量系统已经积极发展，以测量固体表面上的连续压力分布。然而，压力范围几乎被限制在130 Pa（约1 Torr）以上，并且没有应用于较低的压力范围，因为在该范围内压力灵敏度似乎不那么高。在本研究中，我们应用了三种类型的PSP [两种类型是由有机染料和聚合物组成（发光体/粘合剂）; PtOEP/GP 197和PtTFPP/poly（TMSP），以及另一种是吸附在阳极氧化铝上的Pt-Ru]对主要低于130 Pa的稀薄气体流量进行测试，并检查这些基本性能，如压力敏感性，从而选择其中最适合低压范围的PSP。由于PtTFPP/poly（TMSP）具有最高的灵敏度，成功地应用于低密度超声速自由射流干扰表面二维压力分布的测量。
Recently optical pressure measurement systems using pressure sensitive paints (PSP) have actively developed to measure continuous pressure distributions on solid surfaces. However, the pressure range has been almost limited above 130 Pa (about 1 Torr) and there is no application to lower pressure range because the pressure sensitivity seems to be not so high in that range. In this study, we have applied three types of PSP [two types are composed by organic dye and polymer (luminophore/binder); PtOEP/GP197 and PtTFPP/poly(TMSP), and another one is Bath-Ru adsorbed on anodized aluminum] to the rarefied gas flow mainly lower than 130 Pa and examine those fundamental properties such as pressure sensitivity, leading to selection of the most suitable PSP among them for the low-pressure range. Since PtTFPP/poly(TMSP) has the highest sensitivity, it is applied successfully to the measurement of the two-dimensional pressure distribution on the surface interacting with a low density supersonic free jet.