Comparison of the performance of the Artificial boundaries P3 and P4 of stacey

Abstract

In this paper a research of the performance of the two variation of the artificial (transparent) boundaries of Stacey, P3 and P4 has been made [4]. Boundaries effect is being examined through determining of the relative reflected seismical energy back to the model. As the reflected energy is smaller, the boundary is more transparent. Testings are being made with numerical methods based on central finite differences, CFD, on materials with different ratio of the propagating velocities of the compressional and tangential waves . The testing will show how artificial boundaries are refer of different values of this ratio and in which case of values smallest or highest error is obtained