Title :
An Iterative Solution to FEM-BEM Algebraic Systems for Open-Boundary Electrostatic Problems
Author :
Aiello, G. ; Alfonzetti, S. ; Dilettoso, E. ; Salerno, N.
Author_Institution :
Dipartimento di Ingegneria Elettrica, Elettronica e dei Sistemi, Catania Univ.
Abstract :
This paper shows that the global system of equations in the hybrid FEM-BEM solution of open-boundary electrostatic problems can be efficiently solved in an iterative way by making use of the conjugate gradient solver for the FEM equations and the direct LU solver for the BEM equations. To do so, it is convenient to implement the BEM equations in a non-conventional way, by making the nodes for the potential non coinciding with the nodes for its normal derivatives
Keywords :
boundary-elements methods; conjugate gradient methods; electrostatics; finite element analysis; FEM-BEM algebraic systems; conjugate gradient; direct LU solver; iterative solution; open-boundary electrostatic problems; Character generation; Conductors; Electric potential; Electromagnetic fields; Electrostatics; Finite element methods; Integral equations; Matrix decomposition; Sparse matrices; Voltage;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632798
