| Absorbing boundary conditions for numerical simulation of waves | |||||||||||
Abstract | |||||||||||
| In practical calculations, it is often essential to introduce artificial boundaries to limit the area of computation. Here we develop a systematic method for obtaining a hierarchy of local boundary conditions at these artifical boundaries. These boundary conditions not only guarantee stable difference approximations, but also minimize the (unphysical) artificial reflections that occur at the boundaries. | |||||||||||
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