| 各向异性介质吸收边界条件 |
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| 引用本文： | 杨慧珠,王耘.各向异性介质吸收边界条件[J].应用基础与工程科学学报,1994(Z1). |
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| 作者姓名： | 杨慧珠 王耘 |
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| 作者单位： | 清华大学工程力学系，清华大学工程力学系 北京 100084，北京 100084 |
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| 基金项目： | 国家自然科学基金(代号:19202011)，国家教委优秀青年教师基金(编号:1992—552) |
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| 摘 要： | 针对地震波勘探数值模拟中遇到的人为边界反射问题,提出了适用各种各向异性介质的吸收边界条件,证明了其稳定性,在频率域推出了反射系数算法。最后将公式进行差分离散,并对各向同性介质,TI介质及带方位人射的EDA介质进行了数值计算。
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| 关 键 词： | 吸收边界条件 各向异性介质 |
ABSORBING BOUNDARY CONDITIONS FOR ANISOTROPIC MEDIA |
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| Huizhu YANG Yun WANG.ABSORBING BOUNDARY CONDITIONS FOR ANISOTROPIC MEDIA[J].Journal of Basic Science and Engineering,1994(Z1). |
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| Authors: | Huizhu YANG Yun WANG |
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| Institution: | Huizhu YANG Yun WANGDepartment of Engineering Mechanics,Tsinghua University,Beijing 100084 |
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| Abstract: | Aiming at the reflection of artifical boundary when simulating the seismic prospecting, this paper gives the absorbing boundary conditions for anisotropic media. The stability of absorbing boundary is proved and the algorithm of the reflective coefficient is derived in slowness-frequency domain. We then give the difference approximation and apply it to isotropic, transversely isotropic and EDA media with azimuthal incident waves. |
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| Keywords: | absorbing boundary conditions anisotropic media |
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