Title :
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
fDate :
11/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
