Measurements of multiple mole fraction fields in a turbulent jet by simultaneous planar laser-induced fluorescence and planar Rayleigh scattering

被引：4
|
作者：
Brownell, Cody J. [1 ]
Su, Lester K. [2 ]
机构：
[1] USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA
[2] Johns Hopkins Univ, Dept Mech Engn, Appl Fluid Imaging Lab, Baltimore, MD 21218 USA
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2011年 / 22卷 / 08期
基金：
美国国家科学基金会;
关键词：
planar laser imaging; turbulent mixing; multi-species mixing; differential diffusion; Rayleigh scattering; laser-induced fluorescence; ACETONE; DIFFUSION; FLOWS; VAPOR; PRESSURE;
D O I：
10.1088/0957-0233/22/8/085402
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents two-dimensional measurements of all individual mole fractions in a three-species, non-reacting turbulent flow, using planar laser-induced fluorescence (PLIF) and planar laser Rayleigh scattering. The flow is an axisymmetric jet of acetone and helium in an air coflow. PLIF measures the acetone mole fraction, while Rayleigh scattering measures a linear combination of the acetone and helium mole fractions. The simultaneous implementation of these techniques allows for the calculation of the helium and air mole fraction fields. The results of this diagnostic method are being used for the study of multicomponent molecular transport effects in turbulent fluid mixing.
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