Approximate inverse preconditioning for the fast multipole BEM in acoustics
2005
Acoustic radiation from vibrating structures is simulated by a Galerkin boundary element method based on the Burton–Miller approach. The boundary element operators are evaluated by the fast multipole method that allows large-scale computations in the medium frequency range. Two iterative solvers are considered: the generalized minimal residual method and a multigrid solver. Both approaches can be accelerated greatly by the presented approximate inverse preconditioner.
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