A STATISTICAL CHARACTERIZATION FOR POROUS MEDIA STRUCTURES

Main Article Content

Phongsan Meekunnasombat*
Florian Fichot

Abstract

Some porous media structures may appear complicated at first glance.  With proper treatments, these structures may be simplified and characterized for further analysis.  In this paper, a method to statistically characterize the structure of a porous media is presented.  Tomography images of a severely damaged nuclear reactor core are used as samples to develop the proposed method.  It is found that the particle and void size distributions of the samples can be obtained.  These distributions appear to be good representations of the damage degree of the corresponding locations.  They may be fitted by the sum of standard beta distribution functions which are easier to use for a physical and mathematical modeling of such porous structure.  It is expected that this method can also be applied to different types of porous structure in other applications. 


Keywords: porous media, distribution function, curve fitting, tomography, reactor core, severe accident


Corresponding author: E-mail: phongsan@gmail.com

Article Details

Section
Short Communications
Author Biography

Phongsan Meekunnasombat*, Department of Mechanical Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, Thailand

epartment of Mechanical Engineering, Faculty of Engineering Naresuan University, Phitsanulok 65000, Thailand

References

[1] Anderson, M.H., Oakley, J.G., Meekunnasombat, P. and Bonazza, R. 2005. The Dynamics of a Shock Wave and Aluminum Foam Layer Interaction, Proceedings of 25th International Symposium on Shock Wave (ISSW25), Bangalore, India
[2] Fichot, F. et al. 2005. The Use of Diffuse Interface Model to Estimate Effective Transport Properties for Two-phase Flows in Porous Media, Proceedings of 11th International Topical Meeting on Nuclear Thermal-Hydraulics (NURETH11), Avignon, France.
[3] Ortega-Bernardo, M. and Fichot, F. 2000. Post-test calculations of FPT1 test using ICARE2 V3MOD0 code: an alternative scenario, Proceedings of 8th International Conference on Nuclear Engineering (ICONE 8), Baltimore MD, USA.
[4] Meekunnasombat, P., Fichot, F. and Quintard, M. 2006. Numerical Simulation of Two-phase Flow in severely Damage Core Geometries, Proceedings of 14th International Conference on Nuclear Engineering (ICONE 14), Miami FL, USA.
[5] Jacquemain, D., Bourdon, S., De Bremaechker, A. and Barrachin, M. 2000. PHEBUS PF FPT1-Final Report, Document PHEBUS PF IP/00/479, IPSN/DRS/SEA/PEPF.
[6] WWW.http://www.xycoon.com/beta.htm (accessed on August 2005)