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《OIL GEOPHYSICAL PROSPECTING》 1999-01
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Absorptive boundary condition in elastic-wave numerical modeling

Dong LiangguoDong Liangguo(Department of Ocean Geology and Geophysics,Tongji University,Shanghai City,200092)  
Absorptive boundary condition for absorbing man-made boundary reflection must be required in the numerical modeling of seismic wave. The absorptive boundary conditions which are similar to those in original wave equations can be obtained respectively by analysing 2-D and 3-D one-order elastic wave equations in TI medium, and they are applied to numerical modeling of 2-D elastic wave. Snapshot of wave field trial result says that this kind of absorptive boundary condition brings good absorption effect except its simplicity and easy achievement.
【CateGory Index】: P631
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