有机硅单体合成的气固流化床的三维数值模拟  

3D Numerical Simulation of Gas-solid Fluidized Bed for Organic Silicon Monomer Synthesis

作　　者：袁晨[1] 张攀[1] 王伟文[1,2] 

机构地区：[1]青岛科技大学化工学院,山东青岛266000 [2]山东省多相流体反应与分离工程重点实验室化学工程研究所,山东青岛26604

出　　处：《当代化工》2014年第9期1909-1912,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金项目(21276132);青岛市科技发展计划(12-1-4-3-(19)-jch)

摘　　要：为了探索有机硅单体合成气固流化床内硅粉颗粒的流化特性,作者利用计算流体力学CFD软件,采用双欧拉气固两相流模型及SIMPLE算法,模拟了三维的气固流化床内硅粉颗粒的流化特性;分析了气泡生成、长大和破裂的过程,及不同床层高度的固体颗粒运动速度矢量图,不同床层高度处横截面颗粒体积分数变化。结果表明:三维模拟能直观的表现颗粒在流化床中的流化状态,为工业生产及应用提供了有效的依据。In order to investigate the fluidization characteristics in fluidized bed with silicon powder particles, the Computation Fluid Mechanics （CFD） was used to simulate three-dimensional gas-solid flow hydrodynamic characteristics in turbulent fluidized bed under different operation conditions. The Eulerian-Eulerian multiphase model and the SIMPLE algorithm were adopted to analyze the process of bubbles formation, growth and vanishing;and based on the kinetic theory of granular flow, the gas-solid flow characteristics in fluidized bed were studied. The results show that the three-dimensional simulation can provide the performance of the particles in the fluidized bed directly, and provide effective basis for industrial production and application.

关 键 词：计算流体力学(CFD) 流化特性 数值模拟 

分 类 号：TQ018[化学工程]