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Indexed by:期刊论文

Date of Publication:2014-01-01

Journal:Electronic Journal of Geotechnical Engineering

Included Journals:EI、Scopus

Volume:19 U

Issue:U

Page Number:6259-6271

ISSN No.:10893032

Abstract:Water flow through a single rough fracture with fractal surfaces is investigated by numerical simulation which solves the Navier-Stokes equations using finite element method. The rough fractures with fractal surfaces are generated by fractional Brownian motion procedure. The dependence of equivalent transmissibility of a single rough fracture on Hurst exponent and fractal dimension is presented. The investigation shows that equivalent transmissibility of a single rough fracture increases linearly with increase of Hurst exponent, or with decrease of fractal dimension. Variation of mass flow rate versus Hurst exponent is also investigated. For fractal dimension D=1.0 the fracture surfaces become smooth and parallel, and the transmissibility of fracture is equal to its maximum value. ? 2014 ejge.