摘要
分析介绍了激光多普勒流动测量技术的原理和用LDV／PDPA同时测定颗粒流体两相速度和粒径大小的基本方法，并进一步讨论了用LDV／PDPA测量颗粒浓度和两相流动动态特性的问题。
This paper describes and evaluates the techniques for simultaneous measurementsof velocities, particle size and concentration in two-phase flows by means of a Laser-DepplerVelocimetry(LDV)of a Phase-Doppler Particle Analyzer(PDPA). The time series measurementsof the particle size and velocity by a PDPA are also presented in order to analyze the local dynamictwo-phase ffow structrue.
关键词
激光多谱勒技术
颗粒流体
两相流动
流动测量
laser-Doppler measurement technology
particle flow
two-phase flows
dynamic structure
