TEMPORALLY RESOLVED, 2-LINE FLUORESCENCE IMAGING OF NO TEMPERATURE IN A TRANSVERSE JET IN A SUPERSONIC CROSS-FLOW

被引：100

作者：

MCMILLIN, BK

PALMER, JL

HANSON, RK

机构：

[1] High Temperature GasDynamics Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, CA

来源：

APPLIED OPTICS | 1993年 / 32卷 / 36期

关键词：

PLANAR LASER-INDUCED FLUORESCENCE; PLIF; TEMPERATURE IMAGING; INSTANTANEOUS TEMPERATURE MEASUREMENTS; NITRIC OXIDE FLUORESCENCE; TRANSVERSE JET IN SUPERSONIC CROSS FLOW; SCRAMJET; JET MIXING;

D O I：

10.1364/AO.32.007532

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Temporally resolved temperature imaging of a fuel jet in a hot, nonoxidizing supersonic cross flow is described. The temperature measurements are obtained with two lasers and two intensified cameras, with a two-line ratio of planar laser-induced fluorescence from nitric oxide, seeded either in the jet or in both the jet and the cross flow. Diagnostic issues related to the application of the two-line technique in high-speed combustion flows are addressed and include temperature sensitivity, transition selection, measurement resolution, fluorescence lifetime, temporal resolution, and intensifier and camera dynamic-range limitations. Single-shot and frame-averaged side-view temperature images of the flow field are presented, and the measurement uncertainties, which are dominated by photon statistical noise and pulse-to-pulse laser fluctuations, are discussed.

引用

页码：7532 / 7545

页数：14

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