| 弹性波传播数值模拟的区域分裂法 |
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| 引用本文： | 黄自萍,张铭,吴文青,董良国.弹性波传播数值模拟的区域分裂法[J].地球物理学报,2004,47(6):1094-1100. |
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| 作者姓名： | 黄自萍 张铭 吴文青 董良国 |
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| 作者单位： | 同济大学应用数学系,上海,200092;同济大学海洋与地球科学学院,上海,200092 |
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| 基金项目： | 国家自然科学基金 ( 4 0 0 740 3 1)资助 |
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| 摘 要： | 本文针对弹性波波场传播的数学模型，提出了一种基于有限元和有限差分耦合的区域分裂方法．它有灵活的网格剖分，克服了单纯用差分方法对区域的依赖性，可以适用于曲边地表；达到同样精度所需的计算量比有限元方法小；并易于实现并行计算．数值实验表明了算法的有效性．
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| 关 键 词： | 区域分裂方法 有限差分方法 有限元方法 曲边地表 并行计算 弹性波 |
| 文章编号： | 0001-5733(2004)06-1094-07 |
| 收稿时间： | 2003-7-24 |
| 修稿时间： | 2004-6-11 |
A DOMAIN DECOMPOSITION METHOD FOR NUMERICAL SIMULATION OF THE ELASTIC WAVE PROPAGATION |
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| HUANG Zi-Ping,ZHANG Ming,WU Wen-Qing,DONG Liang-Guo.A DOMAIN DECOMPOSITION METHOD FOR NUMERICAL SIMULATION OF THE ELASTIC WAVE PROPAGATION[J].Chinese Journal of Geophysics,2004,47(6):1094-1100. |
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| Authors: | HUANG Zi-Ping ZHANG Ming WU Wen-Qing DONG Liang-Guo |
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| Institution: | 1.Department of Applied Mathematics，Tongji University，Shanghai 200092，China 2 School of Ocean and Earth Science，Tongji University，Shanghai 200092，China |
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| Abstract: | We propose a domain decomposition method based on combining the finite element method with the finite difference method for numerical simulation elastic wave propagation.The domain decomposition does not rely on the shape of computing region and is convenient to deal with irregular surface problems.The computational efficiency is raised.In addition,the idea of the domain decomposition method is easy to be implemented by the parallel computing programs.The results of numerical experiments have confirmed the effectiveness of the method. |
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| Keywords: | Domain decomposition method Finite difference method Finite element method Irregular surface Parallel computing Elastic wave |
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