| 磁化等离子体的并行三维JEC-FDTD算法及其应用 |
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| 引用本文： | 李毅,徐利军,袁乃昌. 磁化等离子体的并行三维JEC-FDTD算法及其应用[J]. 电子学报, 2008, 36(6): 1119-1123 |
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| 作者姓名： | 李毅 徐利军 袁乃昌 |
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| 作者单位： | 海军工程大学电力电子技术研究所,湖北武汉,430033;国防科技大学四院微波中心,湖南长沙,410073;国防科技大学四院微波中心,湖南长沙,410073 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 给出了三维磁化等离子体的电流密度卷积－时域有限差分(JEC-FDTD)算法的迭代公式,指出该算法与一般FDTD算法实现并行时的不同:增加了电流密度的迭代,以及并行计算时在子域交界面上增加了一些数据的交换.并实现了基于MPI (Message Passing Interface)的并行JEC-FDTD算法.然后用计算涂覆等离子体的金属球的雷达散射截面(RCS)的算例验证了并行程序的可靠性,并测试了并行程序在某集群上的并行效率.最后计算了涂敷磁化等离子体的全尺寸飞机的单站RCS.结果表明并行JEC-FDTD算法是可靠的,而且并行效率高,能计算各向异性磁化等离子体的电大尺寸目标的散射.
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| 关 键 词： | 并行 时域有限差分 磁化等离子体 雷达散射截面 |
| 收稿时间： | 2007-02-09 |
The Parallel JEC-FDTD Algorithm for Magnetized Plasmas and Its Applications |
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| LI Yi,XU Li-jun,YUAN Nai-chang. The Parallel JEC-FDTD Algorithm for Magnetized Plasmas and Its Applications[J]. Acta Electronica Sinica, 2008, 36(6): 1119-1123 |
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| Authors: | LI Yi XU Li-jun YUAN Nai-chang |
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| Affiliation: | LI Yi1,2,XU Li-jun2,YUAN Nai-chang2 (1.Research Institute of Power Electronic Technique,Navy University of Engineering,Wuhan,Hubei 430033,China,2.Microwave Center,National University of Defense Technology,Changsha,Hunan 410073,China) |
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| Abstract: | Iterative formulas of JE convolution finite-difference time-domain(JEC-FDTD) algorithm for 3 dimension anisotropic magnetized plasmas were proposed.It had been Pointed out that the difference of the parallel JEC-FDTD algorithm and the general parallel FDTD algorithm.The current density iteration has been added,and more many datum have been exchanged in the common boundaries.And the parallel program of JEC-FDTD algorithm had been gotten based on the MPI.Parallel JEC-FDTD program was reliable by the example t... |
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| Keywords: | parallel FDTD magnetized plasma RCS |
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