Now showing items 1-20 of 120

    • CFD modeling of oil-water separation efficiency in three-phase separators 

      Oshinowo, Lanre; Elsaadawy, Ehab; Vilagines, Regis (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Variations in oil properties or water content influence the rate of crude oil-water separation. This presents a challenge for separator operations when conditions change as fields mature, and for the design of new internals ...
    • CFD modelling of gas entrainment at a propagating slug front 

      Hua, Jinsong; Nordbø, Jørgen; Foss, Martin (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Slug flow is encountered frequently during multiphase fluid transport in pipes. The gas entrainment process at a slug front significantly affects the hydrodynamic behaviour of slug flows. Due to the complexity of the flow ...
    • Multi-scale process models to enable the embedding of CFD derived functions: Curtain drag in flighted rotary dryers 

      Lee, Andrew; Sheehan, Madoc; Schneider, Philip (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Flighted rotary dryers are large industrial devices which are commonly used to dry mineral ores and mineral concentrates, as well as other valuable commodity products. They are high capital cost units as well as large ...
    • A Baseline model for monodisperse bubbly flows 

      Rzehak, Roland; Krepper, Eckhard; Ziegenhein, Thomas; Lucas, Dirk (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      For practical applications the Euler-Euler two-fluid model relies on suitable closure relations describing interfacial exchange processes. The quest for models with a broad range of applicability allowing predictive ...
    • Simulation of two-phase viscous oil flow 

      Johansen, Stein Tore; Mo, Sjur; Kjølaas, Jørn; Brekken, Christian; Smith, Eskerud (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Multiphase flows of heavy oils and other fluids with high apparent viscosity is a particular industrial challenge. Main challenges here is that interfacial waves, atomization at the large scale gas–liquid interface as well ...
    • State of the art in mapping schemes for dilute and dense Euler-Lagrange simulations 

      Radl, Stefan; Gonzales, Begona C.; Goniva, Christoph; Pirker, Stefan (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Euler-Lagrange (EL) simulations are an extremely important tool for academia and industry to better understand gas-particle flows. We present simulation results for various gas-particle flow configurations using a variety ...
    • Prediction of mass transfer between liquid steel and slag at continuous casting mold 

      Gardin, Pascal; Gauthier, Segolene; Vincent, Stephane (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      For the prediction of steel desulphurization and dephosphorization or the evolution of slag composition at continuous casting mould, mass transfer between two immiscible fluids in a turbulent situation should be calculated. ...
    • Modelling of the Ferrosilicon furnace: effect of boundary conditions and burst 

      Panjwani, Balram; Olsen, Jan Erik; Wittgens, Bernd (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      A by-product from the ferrosilicon process is process gas which escapes into the furnace hood were it reacts with air. The process gas mainly consists of CO with some SiO and moisture. Modeling the gas behavior inside the ...
    • Governing physics of shallow and deep subsea gas release 

      Olsen, Jan Erik; Skjetne, Paal (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      A modelling concept for studying the resulting bubble plume from a subsea gas release is presented. Simulation results show good consistency with available experimental data. The modelling concept is applied to assess the ...
    • Modelling argon injection in continuous casting of steel by the DPM+VOF technique 

      Ramirez Lopez, Pavel Ernesto; Jalali, Pooria Nazem; Sjöström, Ulf; Nilsson, Christer (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      An advanced numerical model able to predict transiently the multiphase flow, heat transfer and solidification in a Continuous Casting mould based on the Volume of Fluid Method (VOF) in combination with the tracking of ...
    • Drop breakup modelling in turbulent flows 

      Lalanne, Benjamin; Tanguy, Sebastien; Vejrazka, Jiri; Masbernat, Olivier; Risso, Frederic (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      This paper deals with drop and bubble break-up modelling in turbulent flows. We consider the case where the drop/bubble slip velocity is smaller than or of the order of the turbulent velocity scales, or when the drop/bubble ...
    • A six chemical species CFD model of alumina reduction in a Hall-Héroult cell 

      Witt, Peter J.; Feng, Yuqing; Snook, Graeme A.; Eick, Ingo; Cooksey, Mark (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      The industrial process for producing primary aluminium metal is the reduction of powdered alumina in a Hall-Héroult reduction cell. These cells operate at temperatures above 940 °C with a highly corrosive electrolyte making ...
    • Multi-scale modeling of hydrocarbon injection into the blast furnace raceway 

      Maier, C.; Jordan, C.; Thaler, C.; Harasek, M. (SINTEF Proceedings;1, Chapter; Conference object, 2015)
    • Numerical model for flow in rocks composed of materials of different permeability 

      Li, R.R.; Yang, Y.S.; Pereira, G.G.; Taylor, J.A.; Clennell, M.B.; Zou, C. (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      In the oil and gas industry permeability measurements on rock samples give an indication of the capacity to produce the output (oil/gas etc). Permeability of small samples can be derived from x-ray Computed Tomography (CT) ...
    • Lattice Boltzmann simulations applied to understanding the stability of multiphase interfaces 

      Periera, Gerald G. (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Multiphase flow occurs in a multitude of industrial and technological situations ranging from oil and minerals recovery to microfluidics and nanofluidics. In all these cases we are interested in modelling the flow of two ...
    • Modelling of particle transport and bed-formation in pipelines 

      Narayanan, C.; Gupta, S.; Lakehal, D. (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Particle transport and bed formation in gas and condensate pipelines could occur under various flow regimes, from dilute flows to high mass-loading conditions, to conditions where particle beds form in the pipeline. Proper ...
    • Comparing Euler-Euler and Euler-Lagrange based modelling approaches for gas-particle flows 

      Braun, Markus; Lamert, Markus; Ozarkar, Shailesh; Sanyal, Jay (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Comparative assessment of Euler-Euler and Euler-Lagrange modelling approaches for gas-particle flows is performed by comparing their predictions against experimental data of two fluidization challenge problems put forth ...
    • On pragmatism in industrial modeling 

      Zoric, Josip; Johansen, Stein Tore; Einarsrud, Kristian Etienne; Solheim, Asbjørn (SINTEF Proceedings;1, Chapter; Journal article, 2015)
      Many natural or industrial processes are of extreme complexity, and where the time- and length scales range from an atomistic level to years and kilometers. Often the processes or phenomena consist of multiple sub processes ...
    • Pragmatic CFD modelling approaches to complex multiphase processes 

      Schwarz, M. Philip; Feng, Yuqing (SINTEF Proceedings;1, Chapter; Conference object, 2015)
      Modelling of complex multiphase processes in the minerals and energy resources industries requires a balance between the pursuit for detail and recognition of computational resource limitations, if it is to lead to effective ...
    • An enhanced front tracking method featuring volume conservative remeshing and mass transfer 

      Roghair, Ivo; Van Sint Annaland, Martin; Kuipers, Hans (SINTEF Proceedings;1, Chapter; Conference object, 2015)