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At the Institute for Clean and Secure Energy at the University of Utah, we work closely with industrial partners to assist in commercial utilization of energy from oil shale and oil sand resources. For the past two years, we have been working with American Shale Oil Corp (AMSO) to simulate their pilot process located in the Piceance Basin, Colorado, the richest known oil shale location in the world. Our initial simulations of the system included only the conductive effects associated with heating the formation, which over-predicted the temperature distribution throughout the formation. In our...
The main hydrocarbon reserves of the largest gas fields, currently developing in the north of Western Siberia, are confined to the Cenomanian deposits having weakly-cemented sand reservoirs. Solid particles are typical for well production of such deposits, especially during the late stage of its development. One of the most pressing problems during the well operation is destruction of the reservoir skeleton and withdrawal of sand at the wellhead, as it leads to abrasive wear of the ground equipment. Up to the present, no reliable criterion was proposed to prove the maximum allowable well flow...
The presentation will address three areas: Recent and upcoming developments in STAR-CCM+ that are pertinent to the oil & gas industry Case studies from industry Observations of future trends Areas covered will include Fluid Structure Interaction (FSI) on piping systems such as jumpers and risers, modeling for offshore structures (including efficient ways to model waves without suffering from reflections at boundaries), new models for emulsions and slurries and CFD in the design of separation equipment.
Gas-solid flows are present in many industries such as Oil & Gas and Chemical Processes, and can be measured experimentally or by numerical simulations. This work presents the results of both. The experiments were conducted in a test facility where vertical and horizontal sections of a pipe were selected as probing stations with radial profiles for axial solid velocities, obtained using Particle Image Velocimetry (PIV) technique. The test operating conditions behaved as a dilute flow and the solid particles had similar diameter compared to those applied in FCC units. The numerical...
The effect of the atmospherical dispersion of pollutants (chemical products…) in the close range of the dispersion site is a growing concern both from utilities and from regulation bodies. As a matter of fact, the traditional methods (based on statistical approach) are not valid at a distance below 100m. Some simplified tools exist on the market but they are not well suited to complex sites where buildings can strongly interact with the wind. Over the past few years, AREVA has developed and validated for its own need a CFD method based on STAR-CCM+ to describe in detail the atmospherical...
MYRRHA is an experimental nuclear reactor whose design is under development at the Belgium Nuclear Agency SCK•CEN. In the framework of the FP7 SEARCH and MAXSIMA European projects, CRS4 is giving contributions to the design, making the CFD modelling with STAR-CCM+ of parts of the nuclear systems and of related experimental setups. We present here the two most recent ones. The first application regards the construction of a CFD model of the entire primary coolant loop of MYRRHA which combines a thermal flow with free surfaces and driven by hydraulic pumps. The heat provided by the reacting...
This presentation highlights features of STAR-CCM+ which make it market leader for simulation of flow and motion of floating bodies within marine and offshore industry. Examples of applications by customers are used to highlight the software capabilities and to prove the benefits of simulation. This is followed by presenting the new features that are currently under development and targeting specifically marine and offshore applications, e.g. extensions of motion modeling to allow various combinations of prescribed and free motion (like PMM-tests), extension of cavitation model, internal wave...
Up-to-date marine propellers are designed to accompany a certain extent of cavitation for optimum propulsive efficiency, but excessive extent and certain types of cavitation have the risk of high hull pressure pulse, blade surface erosion and thrust break down. Propeller cavitation becomes unsteady and complex due to the interaction of the propeller flow and the non-uniform wake field behind the hull. The Kappel propeller is an innovative tip-modified propeller, which shows higher propulsive efficiency and lower hull pressure pulse than conventional propellers. Unsteady cavitation simulations...
Numerical simulations of the flow along azimuthing thruster units are becoming more mature these days. A number of steps have been made during the last decade in RANS simulations. Initially the full scale unit performance, being thrust output and power requirement, has been determined for the steady-state condition. Next the time dependent forces, which are a result of the blades passing the strut, have been quantified. These analyses have been made initially for a single unit with uniform inflow and afterwards for two units, where the jet of the upstream thruster is directed towards the...
The wing-sail is an interesting idea for sailboats, and the last America’s Cup showed that its use is possible and very effective. At the University of Pisa it was decided to use this type of sail on the small boat realised for the inter-university race “ 1001 vele ”. A first wing sail has been used in 2013 with satisfactory results, but it was evident that high improvement in the performances can be obtained. The performances of this system are impressive, but the flow is complex and the number of geometrical parameters are very high. In order to tackle this problem resort was made to a...

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