Fast frequency-domain integral equation based computational electromagnetics – Higher order fast scattering solver

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Authors
  1. Jeffery, I.
  2. Aronsson, J.
  3. Okhmatovski, V.
  4. LoVetri, J.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN);Manitoba Univ, Winnipeg MAN (CAN)
Abstract
The code solves large-scale scattering problems using higher-order Locally-Corrected Nystrom method or Rao-Wilton-Glisson (RWG) Method of Moments (MoM). The surface of the scatterer can be discretized with low- or higher-order quadrilateral or triangular elements in LCN solver and low-order triangular patches in RWG solver. The pertinent matrix equations can be solved directly using LU decomposition or iteratively with GMRES method. The matrix-vector product in the iterative solution is accelerated with high-frequency error controllable Multilevel-Fast- Multipole-Method (MLFMM) in LCN solver and broadband MLFMM in RWG solver. The LCN solver code can be executed in serial on conventional workstations or in parallel on distributed memory multiprocessors using Message-Passing Interface (MPI) while RWG MoM solver is available only in serial implementation.

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Report Number
DRDC-OTTAWA-CR-2010-130 — Contractor Report
Date of publication
01 Jul 2010
Number of Pages
100
DSTKIM No
CA034498
CANDIS No
533965
Format(s):
Electronic Document(PDF)

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