document: A discontinuous Galerkin method for transient analysis of wave propagation in unbounded domains A technique based on the discontinuous Galerkin finite element method is developed and applied to the derivation of an absorbing boundary condition for the analysis of transient wave propagation . The condition is exact in that only discretization error is involved . Furthermore , the computational cost associated with use of the condition is an order of magnitude lower than for conditions based on Green functions . The time-stepping scheme resulting from an implicit method in conjunction with this boundary condition appears to be unconditionally stable
doc_bio_tags: O O O O O B I O O O O B I O O O O O B I I I I O O O O O O O O O B I I O O O O B I I O O O O O O O O B I O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O
extractive_keyphrases: discontinuous galerkin finite element method transient analysis transient wave propagation absorbing boundary condition unbounded domains discretization error computational cost implicit method
abstractive_keyphrases: time-stepping scheme unconditional stability