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Size effect on the hydraulic behavior of fluid flow through a single rough-walled fracture [PDF]
Soil Dynamics and Earthquake Engineering, 2021 This study provides a numerical approach to evaluate the effect of sample sizes on fluid flow through a single rough-walled fracture. The rough-walled fracture was generated by using mathematical statistics.
Zhen Zhong, Leibo Song, Yunjin Hu
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Computers and Geotechnics, 2023 Rough non-persistent joints exist widely in natural rock mass. The roughness of joints influences its mechanical and fracture characteristics. However, the research on rough non-persistent jointed rock mass is inadequate.
Lu Wang +2 more
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It Is Rough to Be a Fracture – But How Rough?
82nd EAGE Annual Conference & Exhibition, 2021Summary From its initiation to propagation, opening and closing, a fracture is under continuous pressure as a result of coupled hydromechanical and geochemical processes. The combination of these processes, including for example dissolution and precipitation, karstification and shearing, leads to complex fracture surface geometries that resemble ...
K. Bisdom +5 more
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Transition from linear to nonlinear flow in single rough fractures: effect of fracture roughness
Hydrogeology Journal, 2021A series of laboratory experiments on water flow through rough fractures was performed using self-designed experimental devices to investigate the effect of fracture roughness on the flow behavior. Nine models of single rough fractures—with three joint roughness coefficients (JRCs) of 0–2, 8–10 and 18–20, and three apertures for each JRC—were prepared ...
Jie Liu +4 more
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Investigations of heat extraction for water and CO2 flow based on the rough-walled discrete fracture network [PDF]
Energy, 2019 The Enhanced Geothermal Systems (EGS) has been developed to enhance geothermal energy extraction efficiency from geothermal reservoirs by generating effective fracture network.
Jiawei Li, Zhixue Sun, Chuanyin Jiang
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Modeling of flow and mixing in 3D rough-walled rock fracture intersections
Advances in Water Resources, 2017 The processes of fluid flow and solute transport through rock fractures are of primary importance in environmental engineering and geosciences. This study presented numerical modeling results of fluid flow and solute transport in a 3D rock fracture ...
Liangchao Zou +2 more
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Simulation of chemical erosion in rough fractures
Physical Review E, 2002We report on numerical simulations of acid erosion in a fractured specimen of Carrara marble. The simulations combine two recent advances in lattice-Boltzmann methodology to accurately and efficiently calculate the velocity field in the pore space. A tracer diffusion algorithm was then used to calculate the distribution of reactants in the fracture ...
R, Verberg, A J C, Ladd
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On the universality of fracture surface roughness
Europhysics Letters (EPL), 1996We measure the roughness of fracture surfaces generated in uniaxial tension for model materials in two and three dimensions. We study the effect of disorder, of anisotropy of material properties and of dimensionality on surface roughness. Although the roughness exponent ζ is always found within a narrow range, its value systematically decreases as the ...
Xiaodong Zhang +3 more
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Fracture surface micro-roughness
Scripta Metallurgica, 1984The small-scale roughness of a fracture surface (a scale typically of a few micrometers) has been of interest for some time. That interest has received an impetus in recent years because it relates to mechanisms of fatigue crack propagation mechanisms determining the fracture toughness and mechanisms of creep fracture.
A.W. Thompson, M.F. Ashby
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Fracture Toughness and Fracture Roughness in Anisotropic Granitic Rocks
Rock Mechanics and Rock Engineering, 2009In this paper we present an experimental approach aimed at assessing the correlation between fracture toughness (K IC) and fracture roughness of two granitic rocks (Barre and Stanstead granites) exhibiting significant fracture toughness anisotropy. Roughness values have been estimated for fractured surfaces obtained from Chevron
M. H. B. Nasseri +2 more
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