Description: This paper defines discretizations of the divergence and flux operators that produce symmetric, positive-definite, and accurate approximations to steady-state diffusion problems. Because discontinuous material properties and highly distorted grids are allowed, the flux operator, rather than the gradient, is used as a fundamental operator to be discretized. Resulting finite-difference scheme is similar to those obtained from the mixed finite-element method.
Date: August 1, 1996
Creator: Hyman, J.; Shashkov, M. & Steinberg, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department