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Energetic BEM–FEM coupling for wave propagation in 3D multidomains
Author(s) -
Aimi A.,
Diligenti M.,
Frangi A.,
Guardasoni C.
Publication year - 2013
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.4602
Subject(s) - discretization , finite element method , boundary element method , coupling (piping) , bounded function , stability (learning theory) , boundary (topology) , wave propagation , wave equation , mathematical analysis , space (punctuation) , mathematics , numerical analysis , integral equation , computer science , physics , engineering , mechanical engineering , quantum mechanics , machine learning , operating system , thermodynamics
SUMMARY Starting from a recently developed energetic space–time weak formulation of boundary integral equations for wave propagation problems, a coupling algorithm is presented, which allows a flexible use of FEMs and BEMs as local discretization techniques. Emphasis is given to theoretical and experimental analysis of the stability of the proposed method. Several numerical results on model problems are presented and discussed, showing that both bounded and unbounded three‐dimensional domains can be efficiently addressed. Copyright © 2013 John Wiley & Sons, Ltd.