Revisiting generalized FEM: a Petrov–Galerkin enrichment based FEM interpolation for Helmholtz problem
نویسندگان
چکیده
منابع مشابه
Solution of Helmholtz problems by knowledge-based FEM
The numerical solution of Helmholtz’ equation at large wavenumber is very expensive if attempted by ”traditional” discretisation methods (FDM, standard Galerkin FEM). For reliable results, the mesh has to be very fine. The bad performance of the traditional FEM for Helmholtz problems can be related to the deterioration of stability of the Helmholtz differential operator at high wavenumber. As a...
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ژورنال
عنوان ژورنال: Calcolo
سال: 2018
ISSN: 0008-0624,1126-5434
DOI: 10.1007/s10092-018-0280-5