| 自然对流作用下的凝固过程数值模拟 |
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| 引用本文： | 柴美厚,曾丹苓,张志荣.自然对流作用下的凝固过程数值模拟[J].重庆大学学报(自然科学版),2005,28(6):38-40,56. |
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| 作者姓名： | 柴美厚 曾丹苓 张志荣 |
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| 作者单位： | 重庆大学,动力工程学院,重庆,400030;重庆大学,动力工程学院,重庆,400030;重庆大学,动力工程学院,重庆,400030 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 从传热学的角度出发,采用控制容积法对凝固过程进行了数值模拟,并考虑了凝固过程中的液相部分的自然对流,研究了液相部分自然对流的规律和流型.模拟结果表明液相部分存在整体环流和局部环流.同时,还从模拟结果出发,阐述了自然对流作用下凝固过程中相界面的变化情况.
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| 关 键 词： | 凝固 相界面 自然对流 数值模拟 |
| 文章编号： | 1000-582X(2005)06-0038-03 |
Numerical Simulation of the Solidification Process Under the Effect of Nature Convection |
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| CHAI Mei-hou,ZENG Dan-ling,ZHANG Zhi-rong.Numerical Simulation of the Solidification Process Under the Effect of Nature Convection[J].Journal of Chongqing University(Natural Science Edition),2005,28(6):38-40,56. |
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| Authors: | CHAI Mei-hou ZENG Dan-ling ZHANG Zhi-rong |
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| Abstract: | The process of solidification is numerically simulated with control volume method. The authors study the nature convection in the liquid phase and flow pattern of nature convection during the process of solidification. The result of simulation shows that there are the global flow cells inside the liquid phase, and the local circumfluence exists in the global cells. Especially, the authors analyze transformation of the interface between phases under the effect of free convection on the process of solidification. |
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| Keywords: | solidification phase surface nature convection numerical simulation |
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