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Scale dependency of the effective matrix diffusion coefficient

Journal Article · · Water Resources Research
OSTI ID:837805

It has been recognized that matrix diffusion is an important process for retarding solute transport in fractured rock. Based on analyses of tracer transport data from a number of field tests, we demonstrate for the first time that the effective matrix-diffusion coefficient may be scale dependent and generally increases with test scale. A preliminary theoretical explanation of this scale dependency is also presented, based on the hypothesis that solute travel paths within a fracture network are fractals.

Research Organization:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Organization:
USDOE Office of Civilian Radioactive Waste Management (US)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
837805
Report Number(s):
LBNL--52824
Journal Information:
Water Resources Research, Journal Name: Water Resources Research Journal Issue: 2 Vol. 3
Country of Publication:
United States
Language:
English

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