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Reference: Robinson, Peter Clive., (1984). Connectivity, flow and transport in network models of fractured media. Dphil. University of Oxford.Citable link to this page:

 

Connectivity, flow and transport in network models of fractured media

Abstract: In order to evaluate the safety of radioactive waste disposal underground it is important tounderstand the way in which radioactive material is transported through the rock to the surface. Ifthe rock is fractured the usual models may not be applicable.In this work we look at three aspects of fracture networks: connectivity, flow and transport.These are studied numerically by generating fracture networks in a computer and modelling theprocesses which occur.Connectivity relates to percolation theory, and critical densities for fracture systems are found intwo and three dimensions.The permeability of two-dimensional networks is studied. The way that permeability dependson fracture density, network size and spread of fracture length can be predicted using a cut latticemodel.Transport through the fracture network by convection through the fractures and mixing at theintersections is studied. The Fickian dispersion equation does not describe the resultinghydrodynamic dispersion.Extensions to the techniques to three dimensions and to include other processes are discussed.

Type of Award:Dphil Level of Award:Doctoral Awarding Institution: University of Oxford Notes:The digital copy of this thesis has been made available thanks to the generosity of Dr Leonard Polonsky

Contributors

Rae, JohnMore by this contributor

RoleSupervisor

 

Dr. John RaeMore by this contributor

RoleSupervisor

 Bibliographic Details

Issue Date: 1984Identifiers

Urn: uuid:c61bf73b-b794-49d0-b644-e5429138b953

Source identifier: 602819557 Item Description

Type: Thesis;

Language: eng Subjects: Radioactive waste disposal Radioactive substances Transportation Safety measures Radioactive wastes Tiny URL: td:602819557

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Autor: Robinson, Peter Clive. - institutionUniversity of Oxford facultyMathematical and Physical Sciences Division - - - - Contributors

Fuente: https://ora.ox.ac.uk/objects/uuid:c61bf73b-b794-49d0-b644-e5429138b953



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