Abstract
Efficient simulations of seepage flow and convection/diffusion transportation are very important for various types of environmental assessment such as deep geological disposal of high-level radioactive waste. Because the time scale of such seepage flow process is typically longer than 106 years, experimental study is difficult. Very fine mesh resolution is required in order to simulate the heterogeneousness of the field. This paper describes a new seepage flow analysis method that can consider the probability of parameters. We have attained the increase in efficiency of calculation by improving the preconditioning and the CG method using the feature of a Stochastic Finite Element Method.
