摘要
分析了气固节涌流化床的非均匀特性及其特殊的波动结构.基于波动机理分析,提出了离散化的动力学分析方法,并建立了节涌流化床多自由度随机波动模型.结合频谱分析和统计分析方法,求得了模型矩阵解G_(△j△k)(ω)=H~*(ω)G_(δjδk)(ω)H^T(ω)此解可以表达节涌流化床的波动结构和压力波动功率谱.
In this paper non-homogeneous characteristics and special fluctuation structures of gas-solid slugging fluidized bed is analysed. Based on analysis of fluctuation mechanism,a method of discrete analysis of fluctustion dynamics is proposed and a random model of multivariant vibration is set up for slugging bed. By combining spectual and statistic analysis, the model solution is obtained in the form of matrix equation
GΔjΔk (ω) = H * (ω)Gδjδk(ω)HT(ω)
It can be used to express the vibration structure and the power spectrum of pressure fluctuations in slugging bed.
出处
《化工学报》
EI
CAS
CSCD
北大核心
1993年第4期418-425,共8页
CIESC Journal
关键词
流态化
节涌床
压力波动
动力学
fluidization, slugging bed, pressure fluctuation, dynamics
