SINTEF Proceedings
ISSN 23874295
Nye registreringer

Large scale modelling of bubble formation and growth in a supersaturated liquid
(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 ... 
Flow past a yawed cylinder of finite length using a fictitious domain method
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)In this work, the flow past a finiteend yawed cylinder is studied. This constitute a first step to understand the motion of freely moving particles. To this aim the Finite Volume / Fictitious Domain (FV/FD) method developed ... 
From linear to nonlinear: Transient growth in confined magnetohydrodynamic flows
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)The underlying flow mechanisms for the destabilisation of an electrically conducting fluid under the influence of a transverse magnetic field in a square duct are investigated. Such flows are applicable to metallurgical ... 
A DNS study of droplet spreading and penetration on a porous medium
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)We have investigated the dynamics of droplet spreading and liquid penetration at the surface of a porous medium at zerogravity condition. A coupled IBMVOF finite volume code has been used to perform porescale level fully ... 
A numerical evaluation of the effect of the electro‐magnetic force on bubble flow in aluminium smelting process
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)This paper aims to investigate the effect of electromagnetic forces on bubble flow under an anode using a computational fluid dynamics (CFD) model with the volumeoffluid (VOF) method to capture the gasliquid interface. ... 
CFD based study of dense medium drum separation processes
(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 ... 
Parallel multiphase flow software for solving the Navier‐Stokes equations
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)A code based on finite element method was built and applied on the variable density incompressible NavierStokes equations for accurately simulating immiscible two phase flows. The algorithm simulates the interface ... 
Adaptive coarse‐graining for large‐scale DEM simulations
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)The large time and length scales and, not least, the vast number of particles involved in industrialscale simulations inflate the computational costs of the Discrete Element Method (DEM) excessively. Coarse grain models ... 
Novel efficient hybrid‐DEM collision integration scheme
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)A hybrid collision integration scheme is introduced, benefiting from the efficient handling of binary collisions in the hard sphere scheme and the robust time scaling of the soft sphere scheme. In typical dynamic dense ... 
A multi‐domain 1D particle‐reactor model for packed bed reactor applications
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)A validated multidomain 1D particlereactor model has been developed to simulate packed bed reactor operation. Two main components of the model are: (1) a particle model for simulating the radial distribution of chemical ... 
A numerical approach to model aggregate restructuring in shear flow using DEM in Lattice‐Boltzmann simulations
(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 ... 
Recent developments for the computation of the necessary submergence of pump intakes with free surfaces
(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 safetyrelated issue for all plants ... 
Influence of the upstream cylinder and wave breaking point on the breaking wave forces on the downstream cylinder
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)The interaction of breaking waves with marine structures involves complex free surface deformation and instantaneous loading on the structural members. A typical offshore platform or a coastal structure consists of ... 
Unresolved CFD‐DEM in environmental engineering: submarine slope stability and other applications
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)When installing gravity foundations for offshore structures such as wind power stations or oil platforms, the seabed needs to be excavated for providing enough stability. To minimize the impact on the surrounding fauna ... 
Multiscale approach to fully resolved boundary layers using adaptive grids
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)Bubbly flows are omnipresent in most industrial processes. Often the intended use of such processes is to facilitate efficient mass and heat transfer for reactive flows. Mass and heat transfer coupled with fluid flow in ... 
Importance of the different fluid forces on particle dispersion in fluid phase resonance mixers
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)In Fluid Phase Resonance (FPR) mixers, a central pipe reaches into the liquid phase inside a mixing vessel. Thus two closed gas cushions are formed above the liquid – one inside the pipe and one above the liquid inside ... 
Modelling and numerical simulation of surface active species transport ‐ reaction in welding processes
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)This paper deals with the modelling of steel melting process during TIG welding operations on the nuclear power plants. The issue of the quality assurance of welding operations on some components is of great importance for ... 
Improved collision modelling for liquid metal droplets in a copper slag cleaning process
(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 ... 
LES‐VOF simulation of turbulent interfacial flow in the continuous casting mold
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)Slag entrainment during continuous casting process is a multiscale problem strongly dependent on the molten metal flow in the mold. Largescale flow structures in the mold interact with the slag layer at the top of the ... 
Validation of a rapid slag viscosity measurement by CFD
(SINTEF Proceedings;2, Chapter; Conference object; Peer reviewed, 2017)Slag viscosity is an important property in daily process practice, as well as for modelling flows in metallurgical processes accurately. Measuring slag viscosities is a challenging task, and usually requires a specific ...