Pressure sensitive paint suitable to high Knudsen number regime
Pressure sensitive paint suitable to high Knudsen number regime
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DOI：
10.1088/0957-0233/17/6/s02
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发表时间：
2006-06
影响因子：
2.4
通讯作者：
H. Mori;T. Niimi;M. Hirako;H. Uenishi
中科院分区：
文献类型：
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作者：
H. Mori;T. Niimi;M. Hirako;H. Uenishi
压敏涂料(PSP)技术可以应用于高努森数流动，如低密度气体流动、微细流动等。在这项研究中，为了检验PSP在高努森数流动中测量固体表面压力的可行性，我们研究了PSP的基本性质，特别是在压力低于130帕(约1托)的范围内。结果表明，以聚(TMSP)为粘结剂，以PdOEP或PdTFPP为发光体的PSP在130Pa以下的低压条件下对氧压具有很高的灵敏度。此外，还考察了上述PSPs对一氧化氮的压力敏感性，结果表明，聚(TMSP)结合的PdTFPP具有很高的敏感性，而PdOEP对一氧化氮的敏感性很低。基于PdTFPP的PSP和NO-LIF技术的结合使高Kn区域的流场结构和表面压力的综合测量成为可能。
Pressure sensitive paint (PSP) techniques have the capability to be applied to high Knudsen number flows, such as low density gas flows, micro-flows, and so on. In this study, to inspect the feasibility of PSP for measurement of pressure on a solid surface in high Knudsen number flows, the fundamental properties of PSPs are examined, especially in the range of pressure below 130 Pa (about 1 Torr). As a result, it is clarified that the PSP using poly(TMSP) as a binder and using PdOEP or PdTFPP as a luminophore has very high sensitivity to oxygen pressure under low pressure conditions below 130 Pa. Pressure sensitivity to nitrogen monoxide is also examined for the above PSPs, and it is clarified that PdTFPP bound by poly(TMSP) has very high sensitivity while PdOEP has very low sensitivity to nitrogen monoxide. The combination of the PdTFPP-based PSP and NO-LIF technique enables composite measurement of flow field structures and surface pressure in the high-Kn regime.