Articles techniques et présentations

This study presents a model for simulating a subsurface pumped-hydro energy storage (battery) system. The model captures the coupling between fluid flow in an oil and gas type wellbore connected to a large hydraulic fracture embedded in a low-permeability reservoir. By integrating ... En savoir plus

Modeling of fractured porous media systems is currently of high interest in various academic and applied fields, mainly in the geological and material sciences. The very different scales of the region of an application case on the larger end and the fracture on the lower end pose a ... En savoir plus

Mechanical simulation at one pair of asperity contact has been conducted using the COMSOL Multiphysics® software and the Structural Mechanics Module to study the sliding friction of rock fractures surface as real fracture surface contact slides driven by pressure solution. The evolving ... En savoir plus

This paper proposes a solution method using piezoelectric sensors to detect an anomaly, such as a deformation caused by a crack or fracture, in a pipeline. COMSOL Multiphysics, a simulation software, is used to induce anomalies of different magnitudes to a pipe and record the data from ... En savoir plus

Even though failure due to the presence of flaws, inclusions, cracks or crack like defects has been observed in structural components operated under magnetic fields. The creation of the ferrous man-made structures, however, the formulations of various fracture theories and the ... En savoir plus

For the first time, a comprehensive coupled 2D electrothermal and elastoplastic transient model of a second-generation planar-gate 4H-SiC vertical MOSFET was developed using COMSOL Multiphysics® to evaluate device behavior under extreme short-circuit conditions (T=300-1500 K). Such ... En savoir plus

As the global energy transition accelerates, large-scale seasonal thermal energy storage systems are becoming critical components of future sustainable and resilient district heating networks. Among various storage technologies, cavern thermal energy storage (CTES) offers a promising ... En savoir plus

Overpressure-driven hydrofracture zones are pipe-like structures and widespreadly develop in sedimentary basins worldwide. They have the ability to penetrate vertically for multiple kilometers, acting as pathways for fluid on the basin scale. When the hydrofracture zone penetrates the ... En savoir plus

When treating fractures of the accessory carpal bones in horses, it is important to understand the forces that implants (screws and plates) must withstand. The etiology of the fracture is not fully understood, but their high incidence during exercise suggests a relation to biomechanical ... En savoir plus

The study of bentonite erosion mechanisms in fractures is a problem of maximum interest to understand the long-term performance of the engineered barrier in deep geological repositories of spent nuclear fuel. In this context, erosion due to shear by seeping water, sedimentation due to ... En savoir plus