Magnetic Field Analysis Using Hybrid Mesh of Linear Hexahedral and Tetrahedral Edge Elements
Magnetic Field Analysis Using Hybrid Mesh of Linear Hexahedral and Tetrahedral Edge Elements
复制标题
使用线性六面体和四面体边缘单元的混合网格进行磁场分析
DOI：
10.1109/tmag.2007.916500
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发表时间：
2008
影响因子：
2.1
通讯作者：
A. Kameari
中科院分区：
文献类型：
--
作者：
A. Kameari
线形六面体与四面体单元之间的连接不需要锥形单元的连接。两个三角形面被一个四边形面约束在不规则的挂边网格中。接口上的边缘形状函数不一致。与线性六面体网格、四面体网格和二次节点-线性边缘网格的计算结果相比，该方法的计算结果具有较好的精度。混合网格使网格生成更加灵活，克服了涡流分析中导电区域采用高纵横比线性四面体边缘单元计算结果的退化问题。研究了二次-节点-线性-边缘单元，弥补了线性四面体单元的退化。
Linear hexahedral and tetrahedral elements are joined without linking elements of pyramidal shape. Two triangular faces are constrained by a quadrilateral face in irregular meshes with hanging edges. Edge shape functions are not conforming on the interfaces. Test computations showed good accuracies in the results by the method comparing with results using meshes made of linear hexahedral, tetrahedral and quadratic-nodal-linear-edge elements. The hybrid mesh makes mesh generations flexible and overcomes the degradation of results using the linear tetrahedral edge elements with high aspect ratio for conductive regions in eddy current analyses. The quadratic-nodal-linear-edge elements were also studied and remedy the degradation of linear tetrahedral elements.