An Engineering Approach to Dynamic Boundary Conditions in Numerical Modelling in Casting Process Simulation

The Neimenggu Polytechnic Institute Xiao Keze Zhao Liangyi

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An Engineering Approach to Dynamic Boundary Conditions in Numerical Modelling in Casting Process Simulation
Issue 1, Pages: 3-6(1988)
Published： 1988 ，
DOI：

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[1]肖柯则,赵良毅.铸件凝固温度场数值模拟中动态边界条件的探讨[J].特种铸造及有色合金,1988(01):3-6+19.

The Neimenggu Polytechnic Institute Xiao Keze Zhao Liangyi. An Engineering Approach to Dynamic Boundary Conditions in Numerical Modelling in Casting Process Simulation. [J]. Special Casting & Nonferrous Alloys (1):3-6(1988)
[1]肖柯则,赵良毅.铸件凝固温度场数值模拟中动态边界条件的探讨[J].特种铸造及有色合金,1988(01):3-6+19. DOI：

The Neimenggu Polytechnic Institute Xiao Keze Zhao Liangyi. An Engineering Approach to Dynamic Boundary Conditions in Numerical Modelling in Casting Process Simulation. [J]. Special Casting & Nonferrous Alloys (1):3-6(1988) DOI：

摘要

<正> 铸件温度场数值模拟发展到今天巳有五十年历史了。但常常因计算精度不足而未广泛应用于主产实际。目前

温度场的计算方法很多

其数学模型的基础都是热传导偏微分方程。根据对热传导偏微分方程求解区域的不同

可把它们分为两大类:一类是求解区域包括铸件、铸型、有的还包括砂箱;另一类是求解区域只包括铸件。在前一类算法中

计算精度不足的主要原因是缺少铸型精确的热物性参数和对铸件与铸型界面的热阻考虑不适所致。而且此类算法还把大量机时

Abstract

Computer Simulation of Solidification has been studied experimentally and theoretically using a computer program implementing the assumption that all parts absorbed heat from metal to be a specific medium. Data linked to metalmedium interactions were processed

than two kinds of dynamic boundary condition equations of three sorts of sands are available

test casting employing this method reduces the computer time requirements.

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