耦合传热与流动的铝合金铸件充型三维数值模拟  

3 D Numerical Simulation on Mold Filling Coupling Fluid Flow and Heat Transfer in the Aluminium Alloy Casting

作　　者：邱伟[1] 沈厚发[1] 高志强[1] 白雪峰[1] 柳百成[1] 

机构地区：[1]清华大学

出　　处：《铸造》1997年第4期1-4,共4页Foundry

基　　金：航天基金;博士后基金

摘　　要：本文基于体积函数法，研究开发了模拟铸造三维流动和传热过程的数值计算程序。并针对实例，分析和比较了不同形式浇注系统所引起的流动模式。金属流动的模拟结果与铝合金铸件的实验结果吻合，表明优良的浇注系统可形成理想的充填模式和温度分布，避免某些铸造缺陷。Based on volume function method,a numerical calculation program for simulating 3 D fluid flow and heat transfer was developed.The flow patterns resulted from different types of gating system are analyzed and compared also.The computer simulations of flow in mold cavity are in good agreement with real aluminium alloy casting production.Both of test and numerical investigation showed that,when the liquid metal passes through a well designed gating system,ideal filling pattern and temperature distribution can be achieved,preventing some defects of catings.

关 键 词：充型过程 数值模拟 传热 流动 铝合金 铸件 

分 类 号：TG292[金属学及工艺—铸造] TG290.1