| 一种高效计算各向异性磁化等离子体的时域有限差分算法 |
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| 引用本文： | 钟双英,刘崧.一种高效计算各向异性磁化等离子体的时域有限差分算法[J].计算物理,2009,26(3):415-421. |
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| 作者姓名： | 钟双英 刘崧 |
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| 作者单位： | 1. 南昌大学理学院, 江西 南昌 330031;2. 南京航空航天大学信息科学与技术学院, 江苏 南京 210016 |
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| 基金项目： | 国家自然科学基金，江西省教育厅科技项目 |
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| 摘 要： | 利用电流密度和电场强度的卷积关系,引入电流密度和电场强度分段线性近似,导出一种适合各向异性磁化等离子体介质的FDTD算法的计算公式.计算各向异性碰撞磁化等离子体平板对平行于磁场传播的电磁波的反射和透射系数,与解析结果比较,验证该算法的高效性和高精度,与电流密度卷积(JEC)算法和分段线性电流密度卷积(PLCDRC)算法相比,计算精度及计算效率显著提高.此外,用该算法验证了法拉第旋转效应.
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| 关 键 词： | FDTD算法 电磁波 磁化等离子体 |
| 收稿时间： | 2007-12-11 |
| 修稿时间： | 2008-08-12 |
Efficient FDTD Algorithm for Anisotropic Magnetized Plasma |
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| ZHONG Shuangying,LIU Song.Efficient FDTD Algorithm for Anisotropic Magnetized Plasma[J].Chinese Journal of Computational Physics,2009,26(3):415-421. |
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| Authors: | ZHONG Shuangying LIU Song |
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| Institution: | 1. School of Sciences, Nanchang University, Nanchang 330031, China;2. College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | A novel finite-difference time-domain(FDTD) method for anisotropic magnetized plasma is derived with piecewise linear approximation and recursive convolutions of current density J and electric field E.J and E employ a piecewise linear approximation,respectively.High efficiency and accuracy of the method are confirmed with reflection and transmission coefficients through a collisional magnetized plasma slab with propagation direction parallel to biasing field.Compared with frequency domain analytic results,g... |
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| Keywords: | FDTD methods electromagnetic wave magnetized plasma |
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