摘要
根据拉伐尔喷嘴中气粉流的数学模型，并采用威布尔分布作为植径分布，在不同粉粒体积分率下，对喷嘴中气粉流的行为作了数值计算．计算结果表明，在亚声速区中，气流参数不随粉粒体积分率的变化而变化；在超声速区中，气体速度随粉粒体积分率的减小而增大，而气体温度则随粉粒体积分率的增大而升高．
According to authors' mathematical model describing the behavior of the gas-particle now passing through a Layal nozzle and using Weber distribution as the distribution of particle size,a numerical calculation for different particle volume fractions was carried out. The results showed that the parameters of gasflow are independent of the variation of particle volume fraction in subsonic region while the gas velocity increases with the decrease in particle volume fraction and the gas temperature increases with the particle volume fraction in supersonic region.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
1994年第2期152-157,共6页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金
关键词
气粉流
多相流动
流体力学
particle volume fraction
Layal nozzle,gas-particle nows
distribution of particle size.
