Results 31 to 40 of about 111,470 (303)

Numerical study of the temperature and porosity effects on the fracture propagation in a 2D network of elastic bonds [PDF]

, 2005
This article reports results concerning the fracture of a 2d triangular lattice of atoms linked by springs. The lattice is submitted to controlled strain tests and the influence of both porosity and temperature on failure is investigated. The porosity is
Arcangelis, Auradou, Boffa, Bouchaud, Bouchaud, Bouchaud, Bouchaud, Bouchaud, Bouchbinder, Célarié, Daguier, Daguier, Drazer, Ducourthial, Duxbury, E. Bouchaud, Engøy, Feng, H. Auradou, Herrmann, Jacobs, M. Zei, Morel, Morel, Paun, Politi, Poon, Salminen, Simonsen   +28 more
core   +6 more sources

A Modified Cubic Law for Rough-Walled Marble Fracture by Embedding Peak Density

Advances in Civil Engineering, 2020
The property of water flow through a single rock fracture is the base of describing the seepage characteristics of jointed rock mass. Five artificial tensile fractures of coarse-grained cylinder marble samples were made at about the midpoint of the long ...
Baohua Guo, Chenlin Wang, Long Wang, Yan Chen, Tan Cheng   +4 more
doaj   +1 more source

Analysis of the influence of grouting on stress field of coal and rock mass with rough crack

Meikuang Anquan, 2021
In order to study the distribution law of the stress field in the rough fractures hiding in coal and rock mass during the grouting process, the two-dimensional rough fracture profile is generated according to the random midpoint displacement method, and
ZHANG Jiafan, QIN Xiangrui, LIU Yang, ZHANG Huimei, XU Rongping   +4 more
doaj   +1 more source

Low self-affine exponents of fracture surfaces of glass ceramics [PDF]

, 2006
The geometry of post mortem rough fracture surfaces of porous glass ceramics made of sintered glass beads is shown experimentally to be self-affine with an exponent zeta=0.40 (0.04) remarkably lower than the 'universal' value zeta=0.8 frequently measured
Auradou, Harold, Hulin, Jean-Pierre, Ponson, Laurent, Vié, Philippe   +3 more
core   +5 more sources

Tracer dispersion in two-dimensional rough fractures [PDF]

Physical Review E, 2001
Tracer diffusion and hydrodynamic dispersion in two-dimensional fractures with self-affine roughness is studied by analytic and numerical methods. Numerical simulations were performed via the lattice-Boltzmann approach, using a new boundary condition for tracer particles that improves the accuracy of the method. The reduction in the diffusive transport,
Drazer, German, Koplik, Joel
openaire   +3 more sources

A Novel Approach to Investigating Transport of Lost Circulation Materials in Rough Fracture

Energies, 2018
The drilling fluid loss or lost circulation via fractures is one of the critical engineering problems in the development of deep oil and gas resources. The conventional treatment is to introduce granular lost circulation material (LCM) into the drilling ...
Yi Feng, Gao Li, Yingfeng Meng, Boyun Guo   +3 more
doaj   +1 more source

Hydrothermal coupling in a self-affine rough fracture [PDF]

Physical Review E, 2010
The influence of the multiscale fracture roughness on the heat exchange when a cold fluid enters a fractured hot solid is studied numerically on the basis of the Stokes equation and in the limit of both hydrolubrication and thermolubrication. The geometrical complexity of the fracture aperture is modeled by small self-affine perturbations added to a ...
Neuville, Amélie, Toussaint, Renaud, Schmittbuhl, Jean   +2 more
openaire   +3 more sources

Miscible displacement fronts of shear thinning fluids inside rough fractures [PDF]

, 2006
The miscible displacement of a shear-thinning fluid by another of same rheological properties is studied experimentally in a transparent fracture by an optical technique imaging relative concentration distributions.
A. Boschan, Aris, Auradou, Auradou, Auradou, Becker, Berkowitz, Boschan, Bouchaud, Brown, Detwiler, Drazer, Drazer, Fadili, Gabbanelli, Gentier, H. Auradou, I. Ippolito, Ippolito, Ippolito, J. P. Hulin, Matheron, Neretnieks, R. Chertcoff, Roux, Sahimi, Shah, Taylor, Tsang, Vartuli, Yeo   +30 more
core   +4 more sources

Experimental study on seepage characteristics of rough fracture of limestone under loading-unloading of confining and osmotic pressures

Yantu gongcheng xuebao, 2023
The influences of the roughness of fracture surface and the loading-unloading environment on seepage characteristics of fracture cannot be ignored. To study the influences of the fracture surface with different joint roughness coefficients (JRC) and ...
GAN Lei, JIN Hongjie, SHEN Zhenzhong, , XU LEI, MA Hongying
doaj   +1 more source

Modeling of Two-Phase Flow in Rough-Walled Fracture Using Level Set Method

Geofluids, 2017
To describe accurately the flow characteristic of fracture scale displacements of immiscible fluids, an incompressible two-phase (crude oil and water) flow model incorporating interfacial forces and nonzero contact angles is developed.
Yunfeng Dai, Zhifang Zhou, Jin Lin, Jiangbo Han   +3 more
doaj   +1 more source