TY  - EJOU
AU  - Aimi, A. 
AU  - Diligenti, M. 
AU  - Panizzi, S. 

TI  - Energetic Galerkin BEM for wave propagationNeumann exterior problems
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2010
VL  - 58
IS  - 2
SN  - 1526-1506

AB  - In this paper we consider 2D wave propagation Neumann exterior problems reformulated in terms of a hypersingular boundary integral equation with retarded potential. Starting from a natural energy identity satisfied by the solution of the differential problem, the related integral equation is set in a suitable space-time weak form. Then, a theoretical analysis of the introduced formulation is proposed, pointing out the novelties with respect to existing literature results. At last, various numerical simulations will be presented and discussed, showing accuracy and stability of the space-time Galerkin boundary element method applied to the energetic weak problem.
KW  - wave propagation
KW  -  Neumann exterior problems
KW  -  energy identity
KW  -  hypersingular boundary integral equation
KW  -  Galerkin boundary element method

DO  - 10.3970/cmes.2010.058.185