| 注塑模流动模拟的数值方法及实验验证 |
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| 引用本文： | 李德群,袁中双,肖景容.注塑模流动模拟的数值方法及实验验证[J].华中科技大学学报(自然科学版),1989(Z2). |
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| 作者姓名： | 李德群 袁中双 肖景容 |
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| 作者单位： | 华中理工大学机械工程二系
(李德群，袁中双)，华中理工大学机械工程二系(肖景容) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文采用有限元法和有限差分法的混合解法,对非牛顿流体非等温流动的数学模型,编制了塑料熔体在三维薄壁型腔内流动的模拟程序,并将程序的预测值和实验测量结果进行了比较.
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| 关 键 词： | 注塑 流动模拟 控制体积 短料实验 有限元法 |
Numerical Simulation for Injection-Molding Flow and the Experimental Verification |
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| Li Dequn Yuan Zhongshuang Xiao Jingrong.Numerical Simulation for Injection-Molding Flow and the Experimental Verification[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1989(Z2). |
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| Authors: | Li Dequn Yuan Zhongshuang Xiao Jingrong |
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| Institution: | Li Dequn Yuan Zhongshuang Xiao Jingrong |
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| Abstract: | A hybrid FEM and FDM approach has been used to tackle the injection-molding flow simulation in 3-D thin cavities described with a mathematical model of non-Newtonian fluid and non-isothermal flow. The planar coordinates are described in terms of finite element and the gapwise and time derivatives are expressed in terms of finite difference.An experimental injection mold has been made in order to check the accuracy of the program.The experimental results have been compared with the predicted ones and it has been found that there is good agreement between pressure traces and melt-front advancement. |
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| Keywords: | injction-moldingi Flow simulation Control volume Short shot Finite element method |
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