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    • Recent developments for the computation of the necessary submergence of pump intakes with free surfaces 

      Bloemeling, Frank; Lawall, Ralf (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Swirling flow and gas entrainment induced by vortex formation at pump intakes are possible causes for pump failures and damages. Thus, the avoidance of hollow surface vortices is a safety-related issue for all plants ...

    • Innovative computing for industrially-relevant multiphase flows 

      Juric, Damir; Chergui, Jalel; Shin, Seungwon; Kahouadji, Lyes; Craster, Richard V.; Matar, Omar K. (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      The ability to predict the behaviour of multiphase flows accurately, reliably, and efficiently addresses a major challenge of global economic, scientific, and societal importance. These flows are central to virtually every ...

    • State of the art: macroscopic modelling approaches for the description of multiphysics phenomena within the electroslag remelting process 

      Schubert, Christian; Rückert, Antje; Pfeifer, Herbert (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      The electroslag remelting (ESR) process, which is used to produce large ingots of high quality, bases on controlled solidification and chemical refinement mechanisms and is essential for the production of high quality ...

    • Large scale modelling of bubble formation and growth in a supersaturated liquid 

      Battistella, Alessandro; Aelen, Sander S.C.; Roghair, Ivo; Van Sint Annaland, Martin (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Bubble formation due to supersaturation or superheating plays an important role in many different areas from boiling flows to reactions producing gases, such as in electrolytic processes or fermentation. The predominant ...

    • Improved collision modelling for liquid metal droplets in a copper slag cleaning process 

      Yang, H.; Wolters, J.; Pischke, P.; Soltner, H..; Eckert, S.; Fröhlich, J. (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Collision and coalescence among liquid metal droplets in a slag cleaning process enhanced by electromagnetic stirring were numerically studied. A hybrid collision algorithm was implemented to calculate the collision ...

    • Bubble generated turbulence in two fluid simulation of bubbly flow 

      Schwarz, M. Philip; Feng, Yuqing; Witt, Peter J. (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Bubbly flows are central to many processes in the minerals extraction and metal production industries, mainly because they enhance heat and mass transfer rates. These transfer rates depend on the turbulence level in the ...

    • Experimental and numerical study on single droplet breakage in turbulent flow 

      Shi, Jing; Herø, Eirik Helno; Solsvik, Jannike; Jakobsen, Hugo Atle (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Droplet size distributions in liquid-liquid turbulent flow are determined by droplet breakage and coalescence. The current understanding of these processes are not sufficient. An experimental study on single droplet breakage ...

    • CFD based study of dense medium drum separation processes 

      Eggers, Arne; Baelmans, Martine; Vanierschot, Maarten (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Dense Medium Drum (DMD) separation is applied particularly in the coal and recycling industries. Characteristic of the process is a separation based on density, driven by the buoyancy and gravitational forces acting on an ...

    • Shape factors inclusion in a one‐dimensional, transient two‐fluid model for stratified and slug flow simulations in pipes 

      Bonzanini, Arianna; Picchi, Davide; Ferrari, Marco; Poesio, Pietro (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      In previous works, (Ferrari et al., 2017) have shown that a onedimensional, hyperbolic, transient five equations two-fluid model is able to numerically describe stratified, wavy, and slug flow in horizontal and near-horizontal ...

    • Tire rubber extrudate swell simulation and verification with experiments 

      Buist, J.; Van Dijk, D.J.; Mateboer, T.J. (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Extrudate swell simulations and experiments have been performed with a viscoelastic tire rubber compound at high flow rates through a circular die. A 3-mode PTT model was fitted onto rheological data of the rubber. The PTT ...

    • Modelling and measurements in the aluminium industry ‐ Where are the obstacles? 

      Manger, Eirik (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      In this paper the necessity of obtaining experimental data with good enough quality for model verification is addressed. Relevant examples from the aluminium industry are shown to illustrate some cases where measurements ...

    • Combined multifluid‐population balance method for polydisperse multiphase flows 

      Vikhansky, Alexander (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      In the present work we analyse applicability of the adaptive multiple size-group (A-MuSiG) population balance method to modelling of multiphase flows. The dispersed phase is split into M size-groups, each one having its ...

    • A numerical approach to model aggregate restructuring in shear flow using DEM in Lattice‐Boltzmann simulations 

      Saxena, Akash; Kroll-Rabotin, Jean-Sebastien; Sanders, R.Sean (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Aggregate shape and structure significantly impact rheological properties of fluids in many fields such as extractive metallurgy, oil field drilling and mineral processing. The morphology of the aggregates determines the ...

    • Immersed boundary method for the compressible Navier–Stokes equations using high order summation‐by‐parts difference operators 

      Ehsan Khalili, M.; Larsson, Martin; Müller, Bernhard (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      A ghost-point immersed boundary method is devised for the compressible Navier–Stokes equations by employing high order summation-by-parts (SBP) difference operators. The immersed boundaries are treated as sharp interfaces ...

    • Towards a CFD model for boiling flows: validation of QMOM predictions with TOPFLOW experiments 

      Buffo, Antonio; Vanni, Marco; Marchisio, Daniele L.; Montoya, Gustavo; Baglietto, Emilio (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Boiling flows are very complex systems, usually confined in vertical pipes, where the liquid water moving upwards and the steam gas bubbles generated at the walls. The fluid dynamics of such systems is determined by the ...

    • Experimental and CFD investigation of fractal distributor on a novel plate and frame ion‐exchanger 

      He, Gonggiang; Kochergin, Vadim; Li, Yuehao; Nandakumar, Krishnaswamy (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Conventional pressure based flow distributors face challenges in the form of operational limits as their low outlet density and non-uniform flow distribution path, often act as bottleneck in the overall chemical equipment ...

    • Estimation of flow rates and parameters in two-phase stratified and slug flow by an ensemble kalman filter 

      Ferrari, Marco; Bonzanini, Arianna; Arioli, Gianni; Poesio, Pietro (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Data assimilation methods were introduced to reduce production costs and to optimize processes in different industrial fields, such as oil & gas reservoir industry or transport of multiphase flows in pipelines. In flow ...

    • Simulation of dispersion of immiscible fluids in a turbulent couette flow 

      Vikhansky, Alexander; Eskin, Dmitry (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Dispersion of immiscible fluids in a Couette device, in which the inner cylinder rotates whereas the outer one is immobile, is modelled. Two different modelling approaches are employed. The 1st approach is based on solving ...

    • Stochastic DSMC model for large scale dense bubbly flows 

      Kamath, Satish; Padding, Johan T.; Buist, Kay A.; Kuipers, J.A.M. (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      Bubble columns are widely used in the chemical industry because of their simple design and high efficiency. The scale-up of these kinds of columns is challenging and time-consuming. Since high throughput is targeted, they ...

    • The pear‐shaped fate of an ice melting front 

      Hewett, James N.; Sellier, Mathieu (SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)
      A fluid-structure interaction problem with the melting of water around a heated horizontal circular cylinder is analysed with numerical simulations. Dynamic meshing was used for evolving the flow domain in time as the ...