Scalar wave equation by the boundary element method: A D-BEM approach with constant time-weighting functions

A D-BEM approach. based on time-weighting residuals. is developed for the solution of two-dimensional scalar wave propagation problems The modified basic equation of the D-BEM formulation is generated by weighting. with respect to time, the basic D-BEM equation. under the assumption Of lineal and cubic time variation for the potential and for the flux A constant time-weighting function is adopted The time integration reduces the order of the time-derivative that appears in the domain integral, as a consequence. the initial conditions we directly taken into account. An assessment of the potentialities of the proposed formulation is provided by the examples included at the end of the work Copyright (C) 2009 John Wiley & Sons, Ltd