NUMERICAL MASS-TRANSFER SIMULATION IN WIDESPREAD AREA CONSIDERING ITS SMALL AREA STRUCTURES IN FRACTURED ROCK MASS

Abstract

 The fractures or crustal faults have complete control over hydrological property of each fractured rock mass. This paper proposed the multi-scale numerical mass-transfer simulation model in fractured rock mass by using the discrete fracture network model , random walk model and generalized finite element approximation. In this numerical simulation, the Logistic regression model and Weibull distribution was employed as the space distribution of permeability coefficients. As a numerical result, the bleeding channel flow in fractured rock mass model was revealed numerically.