Author(s)

Edson Wendland

Abstract

A fracture-matrix model, which describes the rock masses by coupling discrete fractures and porous blocks is used for simulation of flow and transport in a randomly generated fracture system. The governing equa- tions are approximated by means of finite elements. For the numerical solution of the advective—diffusive equation the .symmetrical streamline stabilization (S3) is applied in order to stabilize the high advective trans- port in the fractures. It combines the Galerkin method with the Least- Squares method leading to oscillation-free results due to an inherent up- wind effect. The procedure is used in a reliability analysis of underground repositories. The concentration distribution obtained with this model demo

Keywords