Study of coupling between "fractured medium" and "porous medium" flow models
A simulation tool for flow in a fractured rock mass has been developed for use in safety analysis related to deep underground nuclear waste disposal. The model is based on the FRACAS tool, a discrete fracture network (DEN) model and the TRISEC code, an equivalent porous medium (EPM) model. Both models are merged in a single simulator for steady state flow. The model has been applied to a synthetic data set from French study sites. Regional as well as local flows are compared to those obtained from a fully homogeneous porous medium for various sizes of the DFN zone (coupling radius). The distance at which the DFN vanishes is investigated. This approach gives an estimation of the size of a representative elementary volume for the fracturation structure considered.
Bibliographic Reference: EUR 15033 EN (1994) 47 pp., FS, ECU 8.50
ISBN: ISBN 92-826-7384-7
Record Number: 199410347 / Last updated on: 1994-11-28
Original language: en
Available languages: en