| 铸件凝固进程数值模拟计算误差分析 |
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| 引用本文： | 王意,郑贤淑.铸件凝固进程数值模拟计算误差分析[J].大连理工大学学报,1993,33(2):162-165. |
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| 作者姓名： | 王意 郑贤淑 |
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| 作者单位： | 大连理工大学铸造工程研究中心
(王意，郑贤淑)，大连理工大学铸造工程研究中心(金俊泽) |
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| 摘 要： | 以数值分析为手段研究了铸件凝固进程数值模拟计算误差的变化规律．研究表明：凝固数值模拟计算误差随网格尺寸的减小而减小，但时间步长对计算误差影响不大．凝固数值模拟结果（温度、固相率、液固界面位置等）存在波动现象，其产生原因是在凝固潜热计算中采用了温度回补法．
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| 关 键 词： | 凝固 数值模拟 计算误差 铸件 |
Error estimation for numerical simulation of casting solidification |
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| Wang Yi,Zheng Xianshu,Jin Junze.Error estimation for numerical simulation of casting solidification[J].Journal of Dalian University of Technology,1993,33(2):162-165. |
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| Authors: | Wang Yi Zheng Xianshu Jin Junze |
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| Institution: | Research Center of Foundry Engineering .DUT |
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| Abstract: | The numerical error in the numerical simulation of casting solidification is analyzed in detail. It is shown that the numerical error is decreased with the refinement of the element size,and is scarcely affected by the time step. There are the wave phenomena in the results of calculation which is produced by the recovering temperature method used to deal with the release of latent heat. |
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| Keywords: | solidification numerical simulation numerical error wave phenomena |
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