同向双螺杆挤出机捏合段三维非等温流动的数值模拟  

NUMERICAL SIMULATIONS OF 3-D NON-ISOTHERMAL FLOW IN KNEADING ZONE OF CO-ROTATING TWIN-SCREW EXTRUDER

作　　者：彭炯[1] 胡冬冬[1] 陈晋南[1] 谭惠民[1] 

机构地区：[1]北京理工大学化工与材料学院,100081

出　　处：《工程塑料应用》2002年第1期42-44,共3页Engineering Plastics Application

基　　金：国家自然科学基金(59973005)

摘　　要：建立了同向双螺杆挤出机捏合段三维非等温流动一种新的物理模型,利用Polyflow软件包对其进行了数值求解,给出了流道内压力、速度的分布,以及进出口压力差对捏合段流量、温度及压力的影响规律。数值结果对捏合盘的设计和工艺参数的选择有一定的指导意义。A new physical model of 3-D non-isothermal flow in the kneading zone of a co-rotating twin screw extruder was set up. The numerical results were obtained by a software package polyflow. The distributions of the pressure and velocity, and the influences of the pressure difference between the inlet and outlet of the kneading zone on the flow rates, temperature and pressure were also presented. Numerical results are of great significance for guiding of kneading disc design and processing parameter selection.

关 键 词：同双螺杆挤出机 捏合段 三维非等温流动 数值模拟 POLYFLOW 聚合物 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]