| 微波加热陶瓷动态过程的数值模拟 |
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| 引用本文： | 方建华,田永来.微波加热陶瓷动态过程的数值模拟[J].浙江大学学报(自然科学版 ),1992,26(3):255-261. |
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| 作者姓名： | 方建华 田永来 |
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| 作者单位： | 浙江大学能源系
(方建华，沈珞婵，屠传经)，上海硅酸盐所(田永来) |
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| 基金项目： | 上海硅酸盐研究所的国家自然科学基金 |
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| 摘 要： | 本文结合中国科学院上海硅酸盐研究所高性能陶瓷开放实验室研制成功的小功率微波烧结陶瓷的实验装置,对微渡加热陶瓷棒的动态过程进行了数值模拟,建立起一个变物性,变内热源的二维传热数学模型,并对模型进行了求解计算。计算结果和实测数据基本吻合。利用本模型可求出不同物性参数和尺寸的陶瓷材料在不同微波加热功率下的升温速率和温度场的变化,为控制微波烧结陶瓷的温度及热应力提供了理论参数。
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| 关 键 词： | 微波加热 陶瓷 动态过程 数值模拟 |
Numerical simulation of the unsteady process of microwave heating ceramics |
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| Fand Jianhua Sheng Luochan Tu Chuanjing.Numerical simulation of the unsteady process of microwave heating ceramics[J].Journal of Zhejiang University(Engineering Science),1992,26(3):255-261. |
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| Authors: | Fand Jianhua Sheng Luochan Tu Chuanjing |
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| Affiliation: | Fand Jianhua Sheng Luochan Tu Chuanjing(Zhejiang University)Tian Yonglai(Shanghai Silicate Research Iltftitution) |
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| Abstract: | The numerical simulation of unsteady process of the ceramic bar heated at the microwave frequn-cy has been set up in this paper, It is dealt with the low power heating ceramic instrument made by Shanghai Silicate Research Institution of the Chinese Academy of Sciences. There is a numerical model of the two dimensional properties and varying internal heat sourse. The numerical computation results are in good agreement with the experimental data. The variation of temperature fly fate and the temperature profile of ceramics with different properties and various sizes at different microwave heating powers could be determined with this model. The theoretical parameters necessary for controlling the temperature and the thermal stress of the microwave heating ceramics could also.be proprosed. |
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| Keywords: | microwave heating ceramics unsteady process numerical simulation |
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