摘要
多普勒全场测速(Doppler global velocimetry)是一种基于分子滤波原理来测量散射光多普勒频移,从而测量平面内流动速度场的技术,主要应用于流体力学、空气动力学和燃烧学实验研究中,尤其适用于较高马赫数流场测量.研究人员也称其为平面多普勒测速(planar Doppler velocimetry)、吸收-滤波平面多普勒测速(Absorption filtered planar Doppler velocimetry),滤波瑞利散射技术(filtered Rayleigh scattering)等.本文对多普勒全场测速技术的工作原理、结构组成、数据处理、发展趋势等进行了比较全面的介绍.
Doppler global velocimetry （DGV） uses molecular/atomic filter principle to determine Doppler shift of light scattered from particles in a plane defined by a laser sheet, thus provides instantaneous measurements of the flow velocity in the plane. DGV has a great potential in the investigations in the areas of fluid mechanics, aerodynamics, and combustion, especially, in the high Mach-number flow. This technique has attracted interests of many researches, as is called planar Doppler velocimetry （PDV）, absorption filtered planar Doppler velocimetry, filtered Rayleigh scattering （FRS）. This paper reviews DGV in terms of its principle, structures, data processing, and future development.
出处
《力学进展》
EI
CSCD
北大核心
2007年第3期428-442,共15页
Advances in Mechanics
基金
浙江省科技支撑和引导计划资助项目(2007C21076)~~
关键词
多普勒全场测速
平面多普勒测速
分子滤波
流动测量
散射
Doppler global velocimetry, planar Doppler velocimetry, molecular filter, flow measurement, light scattering
