| 结构/直角切割网格下时域有限体积法在计算电磁中的应用研究 |
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| 引用本文： | 陈刚,高正红.结构/直角切割网格下时域有限体积法在计算电磁中的应用研究[J].航空学报,2007,28(5):1033-1039. |
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| 作者姓名： | 陈刚 高正红 |
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| 作者单位： | 西北工业大学,航空学院,陕西,西安,710072 |
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| 摘 要： | 采用有限体积法直接求解时域麦克斯韦方程组，研究了二维圆柱、翼型和三维球体、立方体、双球体等典型完全导电目标的电磁散射问题。空间离散使用近似黎曼解构建网格通量，并针对二维结构网格、三维自适应直角切割网格分别给出重构方法，时间方向采用二步龙格库塔法。计算与理论、实验或文献结果符合良好。
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| 关 键 词： | 时域有限体积法 自适应直角网格 电磁散射 |
| 文章编号： | 1000-6893(2007)05-1033-07 |
| 修稿时间： | 2006年6月21日 |
Study on FVTD Method for CEM Using Structured/Adaptive Cartesian Grids |
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| Chen Gang,Gao Zhenghong.Study on FVTD Method for CEM Using Structured/Adaptive Cartesian Grids[J].Acta Aeronautica et Astronautica Sinica,2007,28(5):1033-1039. |
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| Authors: | Chen Gang Gao Zhenghong |
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| Institution: | School of Aeronautics, Northwestern Polytechnical University |
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| Abstract: | A finite-volume(FV)method is introduced to solve the time-domain(TD)Maxwell equations with applications to handle scattering problems of several classic perfect electrical conductors including cylinder,airfoil in 2D cases and sphere,cube and dual spheres in 3D cases.Spatial discretization and time integration involved are implemented by adopting approximate Riemann solution and two step Runge-Kutta method respectively.Reconstruction schemes for structured grids in 2D case and adaptive Cartesian grids in 3D case are pre-sented successively.The computational results agree quite well with the theory values,measurement data as well as results from references. |
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| Keywords: | FVTD adaptive Cartesian grids electromagnetic scattering |
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