A hierarchical quasi-Helmholtz decomposition, originally developed to address the dense-discretization breakdowns for the EFIE, is applied together with an algebraic preconditioner to improve the convergence of the CFIE in multiscale problems. The effectiveness of the proposed method is studied first on some simple examples; next, tests on real-life cases up to several hundreds wavelengths show its good performance.
Hierarchical bases preconditioner to enhance convergence of the CFIE with multiscale meshes
BULAI, IULIA MARTINA;
2016-01-01
Abstract
A hierarchical quasi-Helmholtz decomposition, originally developed to address the dense-discretization breakdowns for the EFIE, is applied together with an algebraic preconditioner to improve the convergence of the CFIE in multiscale problems. The effectiveness of the proposed method is studied first on some simple examples; next, tests on real-life cases up to several hundreds wavelengths show its good performance.
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