The discrete arti®cial boundary condition on a polygonal arti®cial boundary for the exterior problem of Poisson equation by using the direct method of lines

The numerical simulation for the exterior problem of Poisson equation is considered. We introduced a polygonal arti®cial boundary Ce and designed a discrete arti®cial boundary condition on it by using the direct method of lines. Then the original problem is reduced to a boundary value problem de®ned in a bounded computational domain with a polygonal… (More)