| 棱边有限元法在涡流场数值计算中的应用 |
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| 引用本文： | 阮江军,陈贤珍,周克定. 棱边有限元法在涡流场数值计算中的应用[J]. 湖北工业大学学报, 1994, 0(Z1) |
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| 作者姓名： | 阮江军 陈贤珍 周克定 |
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| 作者单位： | 华中理工大学，武汉华中理工大学电力工程系 |
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| 摘 要： | 本文讨论了三维瞬态涡流场的数值计算的两种方法：混合有限元－边界积分法（ＦＥＭ—ＢＩＭ）和新Ａ法．在ＦＥＭ—ＢＩＭ法中，以磁场强度Ｈ（用于涡流区）和样标量位（用于非涡流区）用为状态变量，充分利用了ＦＥＭ法和ＢＩＭ的各自优点，同时还采用了棱边单元的离散技术．这样，由于离散区域只限制于涡流区域及其边界，所以和常规有限元法相比，大大减少了未知量．在新Ａ法中，引入了补树的概念，使约束规范变得更为容量处理．本文最后给出了两个计算实例，并对这两种方法所得的结果进行了比较．
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| 关 键 词： | 棱边有限元；涡流场；边界有限元 |
The Application of Edge-element Method in Eddy Current Problems |
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| Ruan Jiangjun,Chen Xianzhen,Zhou Keding. The Application of Edge-element Method in Eddy Current Problems[J]. Journal of Hubei University of Technology, 1994, 0(Z1) |
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| Authors: | Ruan Jiangjun Chen Xianzhen Zhou Keding |
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| Affiliation: | Ruan Jiangjun;Chen Xianzhen;Zhou Keding |
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| Abstract: | Inthis paper, the transient 3D eddy current equations arc formulated by two methods (mixed FEM-BIM method and modified A method) in which edge clements are introduced. In the mixed FEM-BIM method, b(in eddy current region) and (in eddy free region) are used as state variables. As a result, cormparing with general FEM methods, the number or unknowns is greatly reduced because the discrctisation is just limited in eddy current region. Calcucation for two test examples have been completed. The obtained results of these two methods have been compared and corresponding conclusions arc given at the cud of this paper. |
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| Keywords: | Edge-element Eddy curent field Boundry-element |
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