Rock fragments and soil hydrological processes: significance and progress

Y Zhang, M Zhang, J Niu, H Li, R Xiao, H Zheng… - Catena, 2016 - Elsevier
In this review, we explore the significance of rock fragments in studies of soil hydrological
processes, because according to research, the effects of rock fragments on soil hydrological …

Quantitative evaluation of fracture geometry influence on nonlinear flow in a single rock fracture

G Rong, J Tan, H Zhan, R He, Z Zhang - Journal of Hydrology, 2020 - Elsevier
The nonlinear flow behavior in a single rock fracture (SRF) has been studied for decades.
However, the existing models to link fracture geometries and nonlinear flow behavior are …

Shear-induced permeability evolution of natural fractures in granite: Implications for stimulation of EGS reservoirs

X Li, F Zhang, N Xiu, D Weng, B Cai, H Fu - Engineering Geology, 2024 - Elsevier
Permeability evolution of natural fractures during shearing is one of the critical issues in
enhanced geothermal system (EGS). In this study, we conducted a series of numerical …

On fluid flow regime transition in rough rock fractures: Insights from experiment and fluid dynamic computation

Y Luo, Z Zhang, Y Wang, J Nemcik, J Wang - Journal of Hydrology, 2022 - Elsevier
The influence of roughness, aperture and asperity irregularity on fluid flow regimes in rough
rock fractures was investigated by performing coupled triaxial water flow tests and fluid …

Experimental and numerical study for the inertial dependence of non-Darcy coefficient in rough single fractures

K Xing, J Qian, W Zhao, H Ma, L Ma - Journal of Hydrology, 2021 - Elsevier
This study experimentally and numerically investigated the influence of the inertial effect of
fluid flow on the non-Darcy coefficient (β). The results showed that the non-Darcy coefficient …

A novel model of hydraulic aperture for rough single fracture: Insights from fluid inertial and fracture geometry effects

S Zhang, X Liu, E Wang, R Qian… - Journal of Geophysical …, 2024 - Wiley Online Library
Previous studies pointed out that the hydraulic aperture (bh) is solely dependent on the
geometric features of a fracture, independent of fluid inertia effects. Here we present an …

The friction factor in the Forchheimer equation for rock fractures

JQ Zhou, SH Hu, YF Chen, M Wang… - Rock Mechanics and Rock …, 2016 - Springer
The friction factor is an important dimensionless parameter for fluid flow through rock
fractures that relates pressure head loss to average flow velocity; it can be affected by both …

Experimental study on permeability evolution and nonlinear seepage characteristics of fractured rock in coupled thermo-hydraulic-mechanical environment: a case …

T Meng, M Lifeng, W Fengbiao, F Gan, X Yongbin - Engineering Geology, 2021 - Elsevier
An understanding of how the fracture permeability evolves in a coupled thermo-hydraulic-
mechanical (THM) environment at real-time ultrahigh temperature has a great significance …

Numerical investigation on the influence of contact characteristics on nonlinear flow in 3D fracture

P Guo, K Gao, M Wang, Y Wang, M He - Computers and Geotechnics, 2022 - Elsevier
The objective of this paper is to investigate the effects of contact rate on fluid flow through
rock fractures. Different contact rate fracture models are constituted by changing the relative …

Relationship between the critical Reynolds number and aperture for flow through single fractures: Evidence from published laboratory studies

PM Quinn, JA Cherry, BL Parker - Journal of Hydrology, 2020 - Elsevier
An evaluation of published laboratory studies of flow through single rough fractures was
conducted to establish a relationship between aperture (2b) and critical Reynolds number …