| 2维地震波场的精确解及其无网格数值模拟 |
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| 引用本文： | 曹艳华,朱挺欣,王 军.2维地震波场的精确解及其无网格数值模拟[J].江西师范大学学报(自然科学版),2022,0(3):262-267. |
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| 作者姓名： | 曹艳华 朱挺欣 王 军 |
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| 作者单位： | 华东交通大学理学院,江西 南昌 330013 |
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| 摘 要： | 从波动理论出发,该文采用升降法推导出2维地震波场的精确解.在此基础上,采用近年来出现的无网格方法对2维地震波场进行了数值模拟,并对模拟的结果与传统的有限差分法进行了比较.数值算例表明:相比于传统的网格类方法,无网格方法的数值精度更高、稳定性更好、使用更灵活.
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| 关 键 词： | 2维地震波场 有限差分法 无网格法 |
The Exact Solution and Meshless Numerical Simulation of Two-Dimensional Seismic Wave Field |
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| CAO Yanhua,ZHU Tingxin,WANG Jun.The Exact Solution and Meshless Numerical Simulation of Two-Dimensional Seismic Wave Field[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2022,0(3):262-267. |
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| Authors: | CAO Yanhua ZHU Tingxin WANG Jun |
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| Institution: | School of Sciences,East China Jiaotong University,Nanchang Jiangxi 330013,China |
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| Abstract: | Based on the wave theory and lifting method,the exact solution of two-dimensional seismic wave field is derived.Then,the meshless method is used to simulate the two-dimensional seismic wave field,and the approximate solution is analyzed and compared to traditional finite difference method.Numerical example shows that the meshless method has more higher accuracy,better stability and more flexibility. |
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| Keywords: | two-dimensional seismic wave field finite difference method meshless method |
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