| 铸坯空冷温度场精确模拟 |
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| 引用本文： | 高雅,孙建林,贠冰,颜景星. 铸坯空冷温度场精确模拟[J]. 塑性工程学报, 2011, 18(3). DOI: 10.3969/j.issn.1007-2012.2011.03.022 |
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| 作者姓名： | 高雅 孙建林 贠冰 颜景星 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 摘 要： | 对铸坯试块建立考虑两种温度边界条件,即计算对流传热系数同时输入辐射和对流载荷,以及将对流传热考虑为辐射载荷的比例输入空冷的温度场模型。利用ANSYS有限元软件进行计算,将计算数据与实测数据对比分析,并对模型进行验证校正。计算结果表明,同时考虑辐射和对流的边界模型,其计算值与实测值较吻合,有更高的计算精度。将对流传热以一定比例考虑为辐射换热,在700℃以上的高温区,对计算结果影响不大;而在温度为700℃以下时,则出现较大误差。
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| 关 键 词： | 空冷 温度场 有限元模拟 辐射 对流 |
Accurate simulation of air-cooled temperature field of casting billet |
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| GAO Ya,SUN Jian-lin,YUN Bing,YAN Jing-xing. Accurate simulation of air-cooled temperature field of casting billet[J]. Journal of Plasticity Engineering, 2011, 18(3). DOI: 10.3969/j.issn.1007-2012.2011.03.022 |
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| Authors: | GAO Ya SUN Jian-lin YUN Bing YAN Jing-xing |
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| Affiliation: | GAO Ya SUN Jian-lin YUN Bing YAN Jing-xing(School of Material Science and Engineering,University of Science and Technology Beijing,Beijing 100083 China) |
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| Abstract: | Air cooled temperature field model of casting billet sample was created,two temperature boundary conditions were considered,one was pre-calculating convective heat-transfer coefficient,and both radiation and convection load were inputted;the other was considering convection heat transfer as proportion of radiation heat transfer,and only radiation load was inputted.ANSYS analysis software was used to calculate the model,calculated and tested data were contrasted to examine and correct the model.The results s... |
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| Keywords: | air cooled temperature field finite element simulation radiation convection |
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