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首页> 外文会议>The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York >SOLUTION OF THREE-DIMENSIONAL TRANSIENT HEAT TRANSFER DURING POLYMER INJECTION MOLDING
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SOLUTION OF THREE-DIMENSIONAL TRANSIENT HEAT TRANSFER DURING POLYMER INJECTION MOLDING

机译：聚合物注射成型过程中三维瞬态传热的解决

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This paper presents a three-dimensional transient finite element analysis code for solving the flow and heat transfer during polymer injection molding. The problems of interest present important challenges for both the physical modeling and the solution algorithm. The free surface flow of molten polymer moving inside the filling cavity has to be computed as well as the heat transfer between the polymer and the mold. During filing, heat transfer occurs at high Prandtl numbers because of the low material conductivity, resulting in sharp temperature gradients close to the walls. In this work the momentum, energy and front tracking equations are solved in a segregated manner. The energy equation is solved in an operator splitting approach. The methodology is robust and effective in solving three-dimensional industrial parts.
机译：本文提出了三维瞬态有限元分析代码，用于解决聚合物注射成型过程中的流动和传热问题。感兴趣的问题对物理建模和求解算法都提出了重要的挑战。必须计算在填充腔内移动的熔融聚合物的自由表面流以及聚合物与模具之间的热传递。在填充过程中，由于材料的低传导性，传热以高Prandtl数发生，导致靠近壁的温度梯度急剧变大。在这项工作中，动量，能量和前跟踪方程是分开解决的。能量方程式通过算符拆分法求解。该方法在解决三维工业零件方面既强大又有效。

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