Perfectly matched anisotropic layer for the numerical analysis of unbounded eddy-current problems

Author

Kosmanis, Theodoros I. ; Yioultsis, Traianos V. ; Tsiboukis, Theodoros D.

Author_Institution

Dept. of Electr. & Comput. Eng., Thessaloniki Univ., Greece

Volume

35

Issue

6

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

4452

Lastpage

4458

Abstract

An extension of the perfectly matched layer (PML) technique in quasi-static fields is developed. The new low frequency PML is based on a fictitious medium with diagonal tensor anisotropy. On the basis of a theoretical investigation, the material properties of the anisotropic layer are specified, so that it will be reflectionless for an arbitrary eddy-current field that may exist in free space. Furthermore, the PML is designed in such a way that outgoing eddy-current fields are sufficiently absorbed. The effectiveness of the low-frequency PML is validated by the implementation of the finite-element solution of a simple two-dimensional eddy-current problem as well as a more complicated three-dimensional one

Keywords

current density; eddy currents; finite element analysis; magnetic anisotropy; diagonal tensor anisotropy; finite-element solution; numerical analysis; perfectly matched anisotropic layer; quasi-static fields; unbounded eddy-current problems; Anisotropic magnetoresistance; Finite difference methods; Finite element methods; Frequency; Maxwell equations; Numerical analysis; Perfectly matched layers; Reflection; Tensile stress; Time domain analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.809137

Filename

809137