| 摘要: |
| A method based on hybrid finite element method(FEM) and fast inhomogeneous pla
ne wave algorithm (FIPWA) is proposed to solve the electromagnetic scattering pr
oblem for bodies of revolution (BOR) with inhomogeneous, composite materials. Th
e FEM with mixed edgebased and nodebased elements is used for representing t
he interior electric field, while the FIPWA is used as the exact boundary condit
ion, hybrid triangular and pulse basis functions are used for representing the e
lectric field and magnetic field on the boundary. Both the memory and CPU time r
equirements are reduced for large scale BOR problems. Numerical results are give
n to demonstrate the validity and the efficiency of the proposed method. |
| 关键词: composite material body of revolution；electromagne
tic scattering；fast inhomogeneous plane wave algorithm；finite element method |
| DOI： |
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| 基金项目: |
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| Hybrid FEM-FIPWA for Scattering from Complex Bodies of Revolution |
| RUI Xi,HU Jun,LIU Qing-huo |
| () |
| Abstract: |
| 提出了一种基于混合有限元与快速非均匀平面波算法求解复杂旋转体的散射问题。内部
电场采用基于点元和边元基函数的有限元方法计算，同时在旋转体的外表面的场采用基于三
角基函数及脉冲基函数的快速非均匀平面波算法计算。采用这种方法处理复杂大尺度的旋转
体问题能节省计算的内存和计算时间，算例验证了算法的准确性和有效性。 |
| Key words: 复合材料 旋转体 电磁散射 快速非均匀平面波算法 有限元法 |
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