Title :
Computation of Higher Order Spatial Derivatives in the Multiscale Expansion of Electromagnetic-Field Problems
Author :
Bottauscio, Oriano ; Chiampi, Mario ; Manzin, Alessandra
Author_Institution :
Ist. Naz. di Ricerca Metrologica (INRIM), Turin
fDate :
6/1/2008 12:00:00 AM
Abstract :
This paper deals with the evaluation of higher order spatial derivatives in electromagnetic-field problems with heterogeneous media handled through a multiscale expansion technique. A comparison is performed on the higher derivative computation, considering an element-free Galerkin approach, and bicubic spline interpolations as well as least-square approximations of piecewise finite-element solutions.
Keywords :
Galerkin method; electromagnetic field theory; finite element analysis; least squares approximations; bicubic spline interpolations; electromagnetic-field problems; element-free Galerkin approach; heterogeneous media; higher order spatial derivatives; least-square approximations; multiscale expansion; piecewise finite-element solutions; Element-free Galerkin (EFG) method; higher order derivatives; multiscale expansion theory; nonhomogeneous media;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.916437
