Recent Advances in Perfectly Matched Layers in Finite Element Applications

Özlem ÖZGÜN and Mustafa KUZUOĞLU

Makale detayları

Recent Advances in Perfectly Matched Layers in Finite Element Applications

Yazarlar:

Özlem ÖZGÜN and Mustafa KUZUOĞLU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2008 Vol.16 Issue 1, pp.57-66

Belge Tipi:

Makale

Yayın Tarihi:

12/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000744077

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

We present a comparative evaluation of two novel and  practical perfectly matched layer (PML) implementations to the problem  of mesh truncation in the finite element method (FEM):  locally-conformal PML, and multi-center PML techniques.  The most  distinguished feature of these methods is the simplicity and  flexibility to design conformal PMLs over challenging geometries,  especially those with curvature discontinuities, in a straightforward  way without using artificial absorbers.  These methods are based on  specially- and locally-defined complex coordinate transformations  inside the PML region.  They can easily be implemented in a  conventional FEM by just replacing the nodal coordinates inside the  PML region by their complex counterparts obtained via complex  coordinate transformation.  After overviewing the theoretical bases of  these methods, we present some numerical results in the context of  two- and three-dimensional electromagnetic radiation/scattering  problems.

 

We present a comparative evaluation of two novel and  practical perfectly matched layer (PML) implementations to the problem  of mesh truncation in the finite element method (FEM):  locally-conformal PML, and multi-center PML techniques.  The most  distinguished feature of these methods is the simplicity and  flexibility to design conformal PMLs over challenging geometries,  especially those with curvature discontinuities, in a straightforward  way without using artificial absorbers.  These methods are based on  specially- and locally-defined complex coordinate transformations  inside the PML region.  They can easily be implemented in a  conventional FEM by just replacing the nodal coordinates inside the  PML region by their complex counterparts obtained via complex  coordinate transformation.  After overviewing the theoretical bases of  these methods, we present some numerical results in the context of  two- and three-dimensional electromagnetic radiation/scattering  problems.

Makale detayları

Recent Advances in Perfectly Matched Layers in Finite Element Applications

Yazarlar: Özlem ÖZGÜN and Mustafa KUZUOĞLU

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2008 Vol.16 Issue 1, pp.57-66

Belge Tipi: Makale

Yayın Tarihi: 12/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000744077

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Özlem ÖZGÜN and Mustafa KUZUOĞLU

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2008 Vol.16 Issue 1, pp.57-66

Belge Tipi:

Makale

Yayın Tarihi:

12/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000744077

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632