Araújo, Francisco Célio deAlberto, Denival RogérioDors, Cleberson2013-01-282013-01-282003ARAÚJO, F. C de; ALBERTO, D. R.; DORS, C. Analysis of 3D time-dependent acoustic problems via a generic BE substructuring algorithm based on iterative solvers. Engineering Analysis with Boundary Elements, v. 27, n. 7, p. 705-716, jul. 2003. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0955799703000213>. Acesso em: 28 jan. 2013.09557997http://www.repositorio.ufop.br/handle/123456789/2067In this paper, a generic BE/BE coupling algorithm based on iterative solvers is applied to solve 3D time-dependent acoustic problems. As regards the treatment of the time-dependence, a direct time-marching scheme is considered. Several types of boundary elements and cells are available in the code for the spatial description of the involved variables. Concerning the BE/BE coupling technique, its chief idea is to completely avoid storing and manipulating the zero blocks appearing in the coupled system by the use of iterative solvers. The global system matrix is not explicitly assembled; instead the algebraic subsystems (associated with the substructures of the model) are manipulated as they were independent of each other. An insight into the coupling strategy and the used iterative solver (Jacobi-preconditioned bi-conjugate gradient method) is given. Analyses of sound barriers are carried out for verifying the performance of the respective computational code modules.en-US3D AcousticsTransient analysesBE/BE coupling algorithmsIterative schemesArtigo publicado em periodicoO periódico Engineering Analysis with Boundary Elements concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3244750414575.