A damping preconditioner for time-harmonic wave equations in fluid and elastic material
نویسندگان
چکیده
A physical damping is considered as a preconditioning technique for acoustic and elastic wave scattering. The earlier preconditioners for the Helmholtz equation are generalized for elastic materials and three-dimensional domains. An algebraic multigrid method is used in approximating the inverse of damped operators. Several numerical experiments demonstrate the behavior of themethod in complicated two-dimensional and three-dimensional domains.
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ورودعنوان ژورنال:
- J. Comput. Physics
دوره 228 شماره
صفحات -
تاریخ انتشار 2009