Direct numerical simulation of pattern formation in subaqueous sediment

Direct Numerical Simulation of Sediment Transport in a Horizontal Channel

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

NUMERICAL SIMULATION OF PATTERN FORMATION IN GRAIN FLOWSy

We present numerical computations for the ow of granular materials in hoppers. The algorithm is based on a cellular automaton approach and takes into account various microscopic e ects, including \orientational e ects". The formation and the dynamics of density waves, recently discovered in physical experiments, is observed and analyzed computationally.

Absolute Permeability Calculation by Direct Numerical Simulation in Porous Media

Simulating fluid flow at micro level is an ongoing problem. Simplified macroscopic flow models like Darcy’s law is unable to estimate fluid dynamic properties of porous media. The digital sample reconstruction by high resolution X-ray computed tomography scanning and fluid-dynamics simulation, together with the increasing power of super-computers, allow to carry out pore-scale simulations throu...

Subaqueous sediment gravity flows undergoing progressive solidification

Highly concentrated sediment flows may occur following failures of loosely compacted, granular slopes underwater or in waterfront areas. The mobility of such sediment flows is of considerable interest to the integrity of coastal fills, underwater pipelines and other such marine facilities. However, the physics of highly concentrated sediment-water mixtures is complex in nature and calls for mor...