三维注射成型流动模拟的研究(英文翻译).rar

Abstract： Most injection molded parts are three-dimensional, with complex geometrical configurations and thick／thin wall sections．A 3D simulation model will predict more accurately the filling process than a 2.5D mode1.This paper gives a mathematical model and numeric method based on 3D model，in which an equal-order velocity-pressure interpolation method is employed successfully．The relation between velocity and pressure is obtained from the discretized momentum equations in order to derive the pressure equation．A 3D control volume scheme is employed to track the flow front．The validity of the model has been tested through the an analysis of the flow in cavity．
Key words： three dimension．equal-order interpolation，simulation，injection molding

摘要:大多数注射成型制品都是具有复杂的几何轮廓和厚壁或薄壁的制品。这种三维仿真模型将比两维半模型具有更精确的填充过程。本文介绍了一种基于三维模型的注射成型流动模拟的数学模型和数值实现，把速度和压力同次插值方法成功地应用到三维注塑模拟的计算中，从离散的动量方程中找出压力和速度的关系，然后迭代到连续性方程中得到压力方程。用三维控制体积法追踪流动前沿，并通过算例分析来说明三维模型的有效性。
关键词：三维模型 等序插值法 模拟 注薂@尚厅br>