Paper Title:
A Note on the Characteristic Length/Time of Dual-Porosity Models for Geologically Fractured Media
  Abstract

This short note presents a discussion on the characteristic length that appears in dualporosity models for fractured geological media, via which the empirical characteristic diffusion time is defined. The physical meaning of it is further interpreted here from a more rigorous mathematical point of view, relating the so-called characteristic length or, equivalently, the characteristic time, to a statistically averaged quantity over a local representative volume element that contains numerous matrix blocks. Each of these matrix blocks will be of distinct characteristic lengths or times unless the geometrical shapes and sizes (in an effectively volume-equivalent way) of them are identical. Theoretically, those characteristic lengths could be statistically determined through measurement of their typical distributions. Thus, the discussion presented in this article may permit one to have greater insight into the nature of these two parameters, and may also allow a laboratory approach to measure them to be developed.

  Info
Periodical
Edited by
Hong-Yuan Liu, Xiaozhi Hu and Mark Hoffman
Pages
263-268
DOI
10.4028/www.scientific.net/KEM.312.263
Citation
M. Lu, L. D. Connell, "A Note on the Characteristic Length/Time of Dual-Porosity Models for Geologically Fractured Media", Key Engineering Materials, Vol. 312, pp. 263-268, 2006
Online since
June 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Lin Wang
Abstract:Soil water characteristic curve is one of important topics of unsaturated soils. Pressure plate extractor and GDS unsaturated triaxial...
1285
Authors: Tian Pei Zhou
Measure Control Technologies and Intelligent Systems
Abstract:In electrolytic aluminum production processing, the measurement and control of alumina concentration is one of the three most important...
1314
Authors: Jin Song Pan
Chapter 3: Material Engineering and Science
Abstract:Through the introduction to the properties of characteristic polynomial, the order reduction theorem of the characteristic polynomial as well...
3516
Authors: Cui Ran Liu, Jin Jun Guo
Chapter 10: Construction Technology
Abstract:With the improved triaxial equipment, the tests of research of the relationships between matrix suction and water content are performed And...
3050
Authors: Jian Chen, Zhi Guo Wang, Lei Zhang, Wen Zhe Yang
Chapter 14: Multi-Field Coupling Theory and its Applications
Abstract:There are heat-fluid-solid multi-field coupling in the thermal recovery reservoir. At present, the researches on oil reservoir porous media...
2425