| 三维有限差分法中提高计算水平磁场准确度的方法 |
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| 引用本文： | 陈伯舫.三维有限差分法中提高计算水平磁场准确度的方法[J].地震学报,2002,24(5):496-501. |
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| 作者姓名： | 陈伯舫 |
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| 作者单位： | (中国香港元朗马田路38号怡丰花园B座26楼3室) |
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| 摘 要： | 为提高三维有限差分法的计算准确度，本文用地表边条件修改了原来的计算程序．新方法新程序通过计算Wannamaker等的模型，检验其效果．结果表明，新程序显著提高了水平磁场值的准确性，同时也改进了垂直分量的计算．
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| 关 键 词： | 数值模拟 3-D有限差分法 地表边条件 |
| 文章编号： | 0253-3782(2002)05-0496-06 |
| 修稿时间： | 2001年12月24 |
IMPROVED TREATMENTS FOR EVALUATING HORI-ZONTAL MAGNETIC COMPONENTS THROUGH THE 3-D FDM IN E-POLARIZATION INDUCTION PROBLEMS |
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| Chen Pofang.IMPROVED TREATMENTS FOR EVALUATING HORI-ZONTAL MAGNETIC COMPONENTS THROUGH THE 3-D FDM IN E-POLARIZATION INDUCTION PROBLEMS[J].Acta Seismologica Sinica,2002,24(5):496-501. |
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| Authors: | Chen Pofang |
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| Abstract: | To improve the accuracy of the numerical evaluation through the 3D finite difference method, the surface boundary conditions are added to modifying the old program. The author has tested the new program by making calculations for the model constructed by Wanamaker, et al (1984). The comparison between the numerical results obtained from this paper and those by Wannamaker, et al (1984) indicates that a pronounced improvement is realized in the evaluation of the horizontal magnetic components. Moreover, better calculations for the vertical magnetic components are also obtainable by using the new program. |
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| Keywords: | numerical modeling 3D finite difference method surface boundary condition |
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