TYPE OF THE VIRTUAL BOUNDARY IN THE APPLICATION OF ANALOG EQUATION METHOD TO THE MFS

In this paper we consider the application of the analog equation method to the method of fundamental solution (MFS) which is a boundarytype meshfree method. In the MFS, a virtual boundary out of the physical boundary is assumed to avoid singularity. The shape of the virtual boundary and its distance from the real boundary affects the quality of the solution. We examine a circular and rectangular boundary with some different shapes of the virtual boundary in the case of using the analog equation method. 1