论文部分内容阅读
In this talk,we shall present efficient and accurate semi-analytic techniques for seamless integration of global Dirichlet-to-Neumann(DtN)boundary conditions with local spectral elements,and discuss the applications in invisibility cloak simulations.We introduce special transformation between curved elements and the reference element,which lead to seamless coupling of local elements with DtN boundary conditions only on spectralelement grids.