Recent Advances in Laser-based Diagnostics for Gaseous Flows

被引：1
|
作者：
Hanson R. [1 ]
Baer D. [1 ]
Morris C. [1 ]
Thurber M. [1 ]
Furlong E. [1 ]
Wehe S. [1 ]
机构：
[1] Department of Mechanical Engineering, Stanford University, Stanford
来源：
Journal of Visualization | 2000年 / 2卷 / 3-4期
关键词：
Absorption spectroscopy; Acetone; Combustion control; Diode laser; Hypersonic; PLIF; Supersonic;
D O I：
10.1007/BF03181447
中图分类号：
学科分类号：
摘要：
Laser-based diagnostic techniques offer unique capabilities for experimentation on gaseous flows. In this paper, we overview recent progress of two concepts: spectrally resolved absorption and planar laser-induced fluorescence (PLIF) imaging. The absorption measurements utilize tunable diode lasers (TDLs) as light sources. Recent TDL applications include a wavelength-multiplexed system for rapid temperature sensing for use in combustion control, and absorption probes for time-resolved measurements of temperature, velocity and species concentrations in a hypersonic shock tunnel. Recent PLIF work includes applications to supersonic, exothermic flowfields relevant to ram accelerators, and development of a method for imaging temperature in air flows using acetone seeding.
引用
收藏
页码：309 / 319
页数：10
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