Title :
A multilevel hierarchical preconditioner technique for multiscale and complex EM scattering bodies
Author :
Bluck, Michael ; Cinosi, Nicolas ; Walker, Stuart
Author_Institution :
Dept. of Mech. Eng., Imperial Coll. London, London, UK
Abstract :
This paper considers the solution of the combined field integral equation (CFIE) for lossy/dielectric problems. Hierarchical conforming bases are developed which are subsequently used in the construction of a multilevel Schwarz type preconditioner. The effectiveness of this approach is demonstrated by the computation of scattering in free space from a range of spheres with different permittivity (non PEC material). The resulting schemes are shown to be faster than conventional schemes.
Keywords :
computational electromagnetics; electric field integral equations; electromagnetic field theory; electromagnetic wave scattering; magnetic field integral equations; combined field integral equation; complex EM scattering bodies; hierarchical conforming base; multilevel Schwarz type preconditioner; multilevel hierarchical preconditioner technique; multiscale EM scattering bodies; non PEC material; Dielectric losses; Equations; Finite element analysis; Integral equations; Permittivity; Scattering;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2013 International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4673-5705-0
DOI :
10.1109/ICEAA.2013.6632503
