By means of finite element method (FEM) and Matlab,the two-dimensioned non-Newtonian and isothermal plastics melt flow in a die for extrusion of the plastics profile with an irregular cross-section was numerically simulated.

• 用有限元方法和Matlab软件对挤出成型中的口模内熔体的二维非牛顿等温流动进行了数值模拟；在基于流率平衡的原则的基础之上；提出了异型材口模成型段的有限元设计方法.