| 复杂地质体粘滞弹性波正演模拟的有限差分法 |
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| 引用本文： | 孟凡顺,郭海燕,和转,王渝明.复杂地质体粘滞弹性波正演模拟的有限差分法[J].中国海洋大学学报(自然科学版),2000,30(2):315-320. |
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| 作者姓名： | 孟凡顺 郭海燕 和转 王渝明 |
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| 作者单位： | 1. 青岛海洋大学,青岛,266003
2. 浙江大学,杭州,310027 |
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| 摘 要： | 运用时空域的二阶中心差分法 ,由运动微分方程、自由边界条件及人工边界上的吸收边界条件 ,导出了二维非均匀粘滞弹性介质中波传播的二阶显示差分格式。该法可以方便且精确地处理自由表面、人工边界及交接层面。实现了在微机上用有限差分法对地震波在传播过程中的波型转换及波形变化的全波场模拟
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| 关 键 词： | 地震波 粘滞弹性介质 有限差分法 波场模拟 |
Viscoelastic Wave Simulating in Complex Medium by Finite Difference Method |
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| Meng Fanshun,Guo Haiyan,He zhuan,Wang Yuming.Viscoelastic Wave Simulating in Complex Medium by Finite Difference Method[J].Periodical of Ocean University of China,2000,30(2):315-320. |
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| Authors: | Meng Fanshun Guo Haiyan He zhuan Wang Yuming |
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| Abstract: | The explicit 2nd order finite difference equations are respectvely derived from the equations of viscoelastic wave and free boundary conditions and absorbing boundary conditions by the central finite difference operation. It can be treated accurately and conveniently by the method to the free surface, the artificial boundary and the interface. The total wave field simulation is realized by this method for the wave pattern conversion and the wave form change in the propagation of the seismic wave. |
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| Keywords: | seismic wave viscoelastic medium finite difference method wave field simulation |
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