... is even scarcer. In this paper, two-dimensional non-linear double diffusive convection in a multi-porous cavity is considered, both numerically and experimentally. The Darcy equation, including Brinkman term to account for the viscous effects, is used as the momentum equation. The model consists of two...

... in place against the body force. The thickness of this chunk, Δ, can be as small as the averaged grain size or orders of magnitude larger depending on the sand properties. In the former limiting case, "raining" of sand grains into a cavity occurs. In the latter biting case, micro-cracks in the sand matrix...

... Abstract Correct choice of perforation orientation in wells can either reduce risk of sanding initiation, or increase the possibility of massive sand production. This article presents a simplified approach to this evaluation procedure, based on stresses induced around perforation cavities...

... cylinders, with pressurised ellipsoidal cavities beneath the surface. Results will be used to assess the reliability of the analytical and numerical procedures used for hydraulic fracture analysis, by testing the predictions of the underlying physical models and by testing the admissibility...