摘要
本文用PDPA对突扩气粒两相流动中的两相脉动速度关联进行了测量，得到了30和50微米颗粒的两相脉动速度关联，其空间分布和气体及颗粒的雷诺应力分布一致．同时发现，气粒两相速度概率密度分布并不都是高斯分布。
The two-phase fluctuation velocity correlation in sudden-expansion gas-particle flows was measured by PDPA (Phase Doppler Particle Anemometer). The two-phase fluctuation velocity correlation of 30 and 50 μm particles were obtained. The two-phase velocity correlation has similar spatial distribution to that of gas and particle Reynolds stresses. It is found that two-phase velocity pdf distribution is not always Gaussian.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1999年第3期388-392,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金
华中理工大学煤燃烧国家重点实验室资助
关键词
突扩流动
速度脉动关联
概率密度函数
两相流
sudden expansion flows
PDPA measurement
two-phase velocity correlation
