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Scale dependence of the effective matrix diffusion coefficient:some analytical results

Description: Matrix diffusion is an important process affecting solutetransport in fractured rock, and the matrix diffusion coefficient is akey parameter for describing this process. Previous studies haveindicated that the effective matrix-diffusion coefficient values,obtained from a number of field tracer tests, are enhanced in comparisonwith local values and may increase with test scale. In thiscommunication, we develop analytical expressions for the effective matrixdiffusion coefficient for two simple fr… more
Date: May 30, 2005
Creator: Liu, H. H.; Zhang, Y. Q. & Molz, F. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ENGINEERED BARRIER SYSTEM FEATURES, EVENTS, AND PROCESSES

Description: This analysis report is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the total system performance assessment (TSPA) for the license application (LA) for the Yucca Mountain repository. This analysis report describes the development of biosphere dose conversion factors (BDCFs) for the volcanic ash exposure scenario, and the development of dose factors for calculating inhalation dose duri… more
Date: May 30, 2005
Creator: na
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Coarse-grained molecular dynamics: Nonlinear finite elements and finite temperature

Description: Coarse-grained molecular dynamics (CGMD) is a technique developed as a concurrent multiscale model that couples conventional molecular dynamics (MD) to a more coarse-grained description of the periphery. The coarse-grained regions are modeled on a mesh in a formulation that generalizes conventional finite element modeling (FEM) of continuum elasticity. CGMD is derived solely from the MD model, however, and has no continuum parameters. As a result, it provides a coupling that is smooth and provi… more
Date: May 30, 2005
Creator: Rudd, R E & Broughton, J Q
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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