Linear Triangles versus Biquadratic Quadrangles in RCS computations

Alexander Herschlein; Juergen von Hagen; Dietmar Loeffler; Werner Wiesbeck

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Linear Triangles versus Biquadratic Quadrangles in RCS computations

机译：RCS计算中的线性三角形与双二次方四边形

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The present contribution compares the geometric approximations of linear triangles and biquadratic quadrangles for Boundary Element Methods. The PMCHW formulation for electromagnetic problems is applied to three canonical problems: a flat plate, a perfect electric conducting sphere, and a sphere with a low dielectric contrast. The biquadtratic quadrangles show to yield more accurate numerical results at less meshing expense. Also, the surface elements may be larger than the ones of linear triangles.

机译：本贡献为边界元方法比较了线性三角形和双二次方四边形的几何近似。用于电磁问题的PMCHW公式适用于三个规范问题：平板，理想的导电球体和介电对比度低的球体。双二次四边形显示出以更少的网格划分费用产生了更准确的数值结果。而且，表面元素可以大于线性三角形的表面元素。

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来源
《Applied Computational Electromagnetics Society journal》 |2005年第3期|p.169-177|共9页
作者
Alexander Herschlein; Juergen von Hagen; Dietmar Loeffler; Werner Wiesbeck;
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作者单位

Institut fuer Hoechstfrequenztechnik und Elektronik, Universitaet Karlsruhe (TH), Kaiserstr. 12, 76133 Karlsruhe, Germany;

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正文语种 eng
中图分类电磁学、电动力学;
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Linear Triangles versus Biquadratic Quadrangles in RCS computations

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