文献类型：期刊文献

中文题名：双转子连续混炼机转子混炼段流场的数值研究

英文题名：Numerical Simulation of Flow Fields in the Mixing Section of the Rotor of A Two-rotor Continuous Mixer

作者：刘晓鸣[1];谢林生[1];马玉录[1];曹文凤[2]

机构：[1]华东理工大学机械与动力工程学院,上海200237;[2]江苏工业学院机械工程学院,江苏常州213016

年份：2006

卷号：20

期号：11

起止页码：95

中文期刊名：中国塑料

外文期刊名：China Plastics

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：双转子连续混炼机;混炼段;数值模拟;三维等温流动

外文关键词：two-rotor continuous mixer; mixing section; numerical simulation; three-dimension isothermal flow

摘要：采用有限元分析软件POLYFLOW对非牛顿聚合物熔体在ECM30双转子连续混炼机转子混炼段的三维等温流动进行了数值模拟,得到了转子混炼段流场的压力、各速度分量、剪切速率的分布。通过对这些流场参数分布的分析,发现在该类混炼机的轴向存在着一定的反向流动,使得该设备具有较强的轴向分布混合特性；另一方面,转子螺棱顶部与机筒内壁的间隙处存在较大的剪切速率,保证了对物料进行有效的分散。
The 3-D isothermal flow of polymeric non-Newtonian melt in the mixing section of ECM30 twin-rotor continuous mixer was numerically simulated using finite dement package POLYFLOW. The profiles of pressure, flow velocity, and shear rate were obtained. Through analyzing the distributions of the flow field, a counter flow along axial direction was found, which indicated a feature of axial mixing. Higher shear rates were found present in the gap between the tip of the rotor and barrel, which guaranteed an efficient mixing.