Energetic BEM for the Numerical Solution of 2D Damped Waves Propagation Exterior Problems

The analysis of damping phenomena. that occur in many physics and engineering problems, reformulated in terms of boundary integral equations and solved via the boundary element method, is a novelty. In this context, we develop here an extension of the so-called energetic boundary element method. recently proposed in literature [1], for the numerical solution of damped waves propagation problems exterior to open arcs in the plane. Hard scattering analysis of 2D damped waves will be carried out directly in space-time domain. The presented numerical results confirm accuracy and stability of the proposed technique, already proved for the numerical treatment of undamped wave propagation problems in several dimensions [2, 3, 4] and for the 1D damped case [5, 6, 7].