Comparisons of laser-saturated, laser-induced, and planar laser-induced fluorescence measurements of nitric oxide in a lean direct-injection spray flame

被引：20

作者：

Cooper, CS ^{[1
]}

Ravikrishna, RV ^{[1
]}

Laurendeau, NM ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, Flame Diagnost Lab, W Lafayette, IN 47907 USA

来源：

APPLIED OPTICS | 1998年 / 37卷 / 21期

关键词：

D O I：

10.1364/AO.37.004823

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report quantitative, spatially resolved laser-saturated fluorescence (LSF), linear laser-induced fluorescence (LIF), and planar laser-induced fluorescence (PLIF) measurements of nitric oxide (NO) concentration in a preheated, lean direct-injection spray flame at atmospheric pressure. The spray is produced by a hollow-cone, pressure-atomized nozzle supplied with liquid heptane, and the overall equivalence ratio is unity. NO is excited by means of the Q(2)(26.5) transition of the gamma(0, 0) band. LSF and LIF detection are performed in a 2-nm region centered on the gamma(0, 1) band. PLIF detection is performed in a broad similar to 70-nm region with a peak transmission at 270 nm. Quantitative radial NO profiles obtained by LSF are presented and analyzed so as to correct similar LIF and PLIF profiles. Excellent agreement is achieved among the three fluorescence methodologies. (C) 1998 Optical Society of America.

引用

页码：4823 / 4833

页数：11

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