무한요소를 사용한 산란 모델링의 비균일 주파수 영향

초록

In unbounded domain modeling, infinte(wave envelope) elements are used in conjunction with finite elements in the bounded domain. When infinite elements are used, however, so called artificial reflection happens at the mathematical boundary described by the infinite elements due to the inaccurate mimic of the radiation condition. This results in irregular frequency in scattering problems and some remarks related with theorder of infinite wave envelope element and the model size are addressed