SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Modelling sorbing and non-sorbing solute migration in a real fracture geometry using a lattice-gas cellular automaton

A. Genty (IRSN), V. Pot (INRA) - Computional Methods in Water ressources, Chapel Hill USA - june 13th-17th  2004

Document type > *Congrès/colloque

Keywords > geology, radionuclides, rift/fault

Research Unit > IRSN/DSU/SSD, IRSN/DSU/SSD/BECS

Authors >

Publication Date > 26/07/2004

Summary

Fractures are features that may be encountered in a potential host rock for high level nuclear waste disposal. They may appear as potential pathways for radionuclides transport. Hydrodynamic properties of the transport inside these systems must then be characterized. Miscible non-sorbing tracer displacements were performed on 2-D real fracture geometry with lattice-gas cellular automaton (LGA). LGA was shown to easily handle the complex geometry of such a fracture. The numerical breakthrough curves obtained were inverted by mean of the CDE and the MIM transport models. Two main conclusions were drawn : (1) at lengh scale of the study, transport in our fracture geometry was more accurately interpreted in terms of the MIM model rather than in terms of the classical CDE model; (2) retardation factor alone was not sufficient to account for the effect of sorption on transport : hydrodynamic dispertion coefficient value had to be increased in addition.

Send Print

More information


Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok