聚合物熔体三维口模动态挤出流动的数学和数值模型  

Mathematical and Numerical Models of Three Dimensional Dynamic Flow of Polymer Melt within Extrusion Dies

作　　者：柳和生[1] 吴晓[2] 

机构地区：[1]上饶师范学院,上饶334000 [2]武汉科技学院机电工程系,武汉430074

出　　处：《计算机辅助工程》2004年第3期32-36,共5页Computer Aided Engineering

基　　金：国家自然科学基金(No:59763002);江西省自然科学基金资助.

摘　　要：本文针对受口模入口处周期性振动的入口压力驱动的聚合物熔体在挤出口模内的三维等温动态流动,建立了其数学模型,尔后利用有限元法和有限差分法建立了其数值模型。这些模型为进一步开展聚合物熔体三维口模动态挤出,尤其是异型材口模动态挤出奠定了基础。In this paper, the mathematical and numerical models were formulated by means of finite element and finite difference methods for the isothermal three dimensional polymer melt flow driven by a periodically oscillating entrance pressure through the extrusion die. These models can be used for study of three dimensional polymer melt dynamic extrusion from dies, especially from the die with an irregular cross section.

关 键 词：挤出口模 挤出 聚合物熔体 压力驱动 异型材 流动 三维 数学 周期性 基础 

分 类 号：TQ311[化学工程—高聚物工业]