This chapter presents a discrete approach for modelling failure of heterogeneous rock material with discrete crack propagation and internal fluid flow through the saturated porous medium, where the codoi:10.1007/978-3-319-27996-1_12Mijo NikolicAdnan IbrahimbegovicPredrag MiscevicSpringer International Publishing
Fluid pressure evolution during the earthquake cycle controlled by fluid flow and pressure solution crack sealing. Earth Planets and Space 2002; 54(11):1139-1146.Gratier, J-P, P. Favreau, F. Renard, and E. Pili, Fluid pressure evolution during the earthquake cycle controlled by fluid flow ...
Eq. (2) does not allow for rock dilation, thus the Purcell method is not applicable for modeling fluid flow through dilatant crack-like pathways. Fracture aperture, contrary to circular pore throat geometry, is highly sensitive to the compressive stress and fluid pressure inside the crack. Due ...
and the uniaxial compressive strength is 35–40mpa. The 0.125 m3solid was poured at one time and processed into a cuboid of 100 mm × 103 mm × 100 mm. Then, the cuboid is split into a single crack sample through the middle. The fractured halves are dislocated by 1.5 mm in the left...
The effect of the fluid contained in the crack-pore space of a discrete element on its stress state is described on the basis of the Biot linear model of poroelasticity52,53,54. The inelastic behavior of the permeable brittle material of the discrete element is described using a plastic flow...
Liquid leak rate from pipe crack Fire hydrant Pressure relief valve sizing Thrust block force due to pipe bend Bypass loop Venturi, Nozzle, and Orifice Flow Meters (D is pipe diameter): Venturi (liquids) Nozzle (liquids) Orifice (liquids, D<5cm) Orifice (liquids, D≥5cm) Orifice (gases, ...
The fractionalβindex can be quantitative for describing fluid flow behaviors with rock failures. Theβvalue would change from greater than 1 when crack propagation, to be less than 1 when cracks broken. Thus, the fluid in the fractures can be essentially defined as flow rate switching from sup...
Abstract In present years, the study of nanofluids has emerged as a hot topic among the researchers, because the nanoparticle contained in the fluids significantly enhances the heat transfer properties of the fluids. Particularly, rotating ows are of vital importance due to their wide range of scie...
Since parameters of fluids and the permeability are the same for cases M1, M2, and M3, the difference in fluid viscosity affects the time to fracture and breakdown pressure and crack initiation pressure. Table 3. Breakdown pressure, crack initiation pressure, and number of cracks associated with...
To summarise, hydrothermal alteration can decrease or increase the matrix porosity and permeability of a volcanic rock through pore- and crack-filling precipitation and mineral dissolution, respectively. Show abstract Physical and mechanical property relationships of a shallow intrusion and volcanic host ...