Exact non-reflecting boundary condition for 3D time-dependent multiple scattering-multiple source problems

Besides showing a good accuracy and numerical stability, the proposed NRBC has the property of being suitable for artificial boundaries of general shapes. It also allows the treatment of far field (multiple) sources, that do not have to be necessarily included in the finite computational domain, being transparent not only for outgoing waves but also for incoming ones. This approach is in particular used to solve multiple scattering problems.