Global boundary conditions and fast Helmholtz solvers
1989 (English)In: IEEE transactions on magnetics, ISSN 0018-9464, E-ISSN 1941-0069, Vol. 25, no 4, 2804-2806 p.Article in journal (Refereed) Published
Electromagnetic scattering from a conducting two-dimensional cylinder is modeled by solving Helmholtz's equation with the far-field radiation boundary condition replaced by a global boundary condition allowing. This allows the boundary condition to be applied very near the scatterer. The discrete problem is solved by a biconjugate gradient algorithm. IncompleteLUdecomposition is used as a preconditioning strategy, resulting in very fast convergence. The numerical solution is compared with known solutions and found to converge fasters forka⩽10, wherekis the wave number andais the radius of the cylinder
Place, publisher, year, edition, pages
1989. Vol. 25, no 4, 2804-2806 p.
Computer and Information Science
IdentifiersURN: urn:nbn:se:kth:diva-90500DOI: 10.1109/20.34290OAI: oai:DiVA.org:kth-90500DiVA: diva2:505740
NR 201408052012-02-242012-02-24Bibliographically approved