Analysis of 3D time-dependent acoustic problems via a generic BE substructuring algorithm based on iterative solvers

摘要: In 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 time-dependence, direct time-marching scheme considered. Several types boundary elements and cells are available in code for spatial description involved variables. Concerning technique, its chief idea completely avoid storing manipulating zero blocks appearing coupled system by use solvers. The global matrix not explicitly assembled; instead algebraic subsystems (associated with substructures model) manipulated as they were independent each other. An insight into strategy used solver (Jacobi-preconditioned bi-conjugate gradient method) given. Analyses sound barriers carried out verifying performance respective computational modules.