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《Chinese Journal of Geophysics》 1995-S1
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ABSORBING BOUNDARY CONDITIONS FOR ANISOTROPIC ELASTIC WAVE EQUATIONS

SHAO XIU-MIN; LAN ZHI-LING (Institute of mathematics ,Academia Sinica, Beijing 100080)  
In this paper two kinds of absorbing boundary conditions for the anisotropic elastic wave equations are presented. One of them is of analytical form, which generalizes the Clayton-Engquist-majda conditions for the acoustic and isotropic elastic wave equations. Another one is of discrete form, which is an improvement over the Liao Zhenpeng condition.The stability and reflection properties of the given conditions are analysed. The results of numerical experiments have confirmed their satisfactory absorbing effect for the artificial reflective waves.
【Fund】: 国家自然科学基金会、中国科学院、中国石油天然气总公司和大庆石油管理局联合资助
【CateGory Index】: P631.4
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