NONHOMOGENEOUS FIELD POTENTIAL PROBLEMS SOLUTION BY THE MODIFIED LOCAL GREENS-FUNCTION METHOD (MLGFM)

A question in the boundary element method procedures which has not rec eived a satisfactory answer up until now is the treatment of problems in media where the properties change continuously or piecewise continu ously. In such cases, there are no known fundamental solutions. This p aper describes an attempt for solving these problems and is based on t he modified local Green's function method which does not require the k nowledge of the explicit form of a fundamental solution. Presently, th is method is reviewed in its simplest form and it is also shown to be related to the Galerkin boundary element method, Some numerical result s for non-homogeneous potential problems are presented.