转子转速对叶片挤出机混合性能影响的数值模拟  

Numerical Simulation of Mixing Characteristics with Different Rotational Rates in Vane Extruder

作　　者：周喜灵 谢海玲[1] 文劲松[1] 雷绍阔 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心,广东广州510640 [2]广汽集团汽车工程研究院,广东广州511434

出　　处：《塑料工业》2015年第8期37-40,共4页China Plastics Industry

基　　金：华南理工大学中央高校基本科研业务费专项资金资助项目(2014ZB0021)

摘　　要：运用Polyflow软件对叶片挤出机中一个叶片单元的流场分布进行数值模拟。基于流场分析结果,在Polyflow中建立混合任务,在叶片单元的入口处瞬间释放1 000个粒子,通过后处理软件POLYSTAT对粒子的混合特性参数进行统计分析。在此基础上,通过改变转子转速研究了转子转速对叶片挤出机混合性能的影响。结果表明,叶片单元的转速处于某一特定值时分散混合效果最好。Polyflow software was used to perform the numerical simulation of polymer melt flow characteristics in a vane unit. With the results of numerical simulation, the mixing characteristics were evaluated by using the statistical post-processor program Polystat. Based on this, the effects of the rotational speed on the mixing characteristics of the vane unit was studied by modifying the rotational rate. The results showed that the best dispersion mixing result could be reachedat a specialrotational speed.

关 键 词：叶片挤出机 转速 混合性能 数值模拟 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]