节涌流化床压力波动动力学研究(Ⅰ)波动机理与数学模型

CIESC Journal

节涌流化床压力波动动力学研究(Ⅰ)波动机理与数学模型

朱家骅,余华瑞,石炎福

成都科技大学化工系,成都科技大学化工系,成都科技大学化工系成都610065 ,成都610065 ,成都610065

出版日期:1993-08-25 发布日期:1993-08-25

STUDY ON DYNAMICS OF PRESSURE FLUCTUATIONS FOR SLUGGING FLUIDIZED BED(I)FLUCTUATION MECHANISM AND MATHEMATICAL MODEL

Zhu Jiahua, Yu Huarui and Shi Yanfu (Department of Chemical Engineering, Chengdu University of Science and Technology, Chengdu 610065)

Online:1993-08-25 Published:1993-08-25

摘要/Abstract

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.

Abstract: 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.

朱家骅,余华瑞,石炎福. 节涌流化床压力波动动力学研究(Ⅰ)波动机理与数学模型 [J]. CIESC Journal.

Zhu Jiahua, Yu Huarui and Shi Yanfu (Department of Chemical Engineering, Chengdu University of Science and Technology, Chengdu 610065). STUDY ON DYNAMICS OF PRESSURE FLUCTUATIONS FOR SLUGGING FLUIDIZED BED(I)FLUCTUATION MECHANISM AND MATHEMATICAL MODEL[J]. .