注塑模熔体非牛顿流动的数值模拟  

NUMERICAL SIMULATION OF NON NEWTONIAN FLUID FLOW IN THE FILLING PROCESS OF AN INJECTION MOLD

作　　者：苏耀西[1] 

机构地区：[1]西北工业大学飞机系

出　　处：《航空学报》1997年第4期448-450,共3页Acta Aeronautica et Astronautica Sinica

基　　金：航空科学基金

摘　　要：研究注塑模流动的数值模拟。用有限元—有限差分方法模拟非牛顿流体的压力场和温度场，用流体网格法（ＦＡＮ）模拟熔体锋面的推进过程，这种方法具有通用性好和容易实现自动推进的优点。在４８６微机上对几个算例进行了模拟计算．比较了牛顿和非牛顿流体的流动特点和锋面推进自动处理的效果，得到了满意的结果。The filling process of non Newtonian fluid flow in an injection mold was investigated and numericaly simulated. The quasi steady flow field governed by a nonlinear elliptic equation was computed with a finite element method, and the unsteady transport equation of temperature was solved by a mixed finite element finite difference method. For the simulation of melt front advancing, a formulation based on the method of flow analysis network was adopted, which has the advantage of being amenable to automatic algorithm. Examples of computation were given and the results discussed.

关 键 词：注塑模 CAD 非牛顿流体力学 

分 类 号：O373[理学—流体力学] TQ320.66[理学—力学]