| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bojarevics, Valdis
University of Greenwich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2024A process to produce a continuous liquid metal stream for gas atomisation
- 2021Enhancement of mechanical properties of pure aluminium through contactless melt sonicating treatmentcitations
- 2020Acoustic resonance for contactless ultrasonic cavitation in alloy meltscitations
- 2020Progress in the development of a contactless ultrasonic processing route for alloy grain refinementcitations
- 2020Contactless ultrasonic treatment in direct chill casting
- 2019The contactless electromagnetic sonotrodecitations
- 2019Contactless ultrasonic cavitation in alloy meltscitations
- 2019Manufacturing of a metal component or a metal matrix composite component involving contactless induction of high - frequency vibrations
- 2016Multiple timescale modelling of particle suspensions in metal melts subjected to external forces
- 2016Modeling of convection, temperature distribution and dendritic growth in glass-fluxed nickel meltscitations
- 2015Contactless ultrasound generation in a cruciblecitations
- 2014The ExoMet project: EU/ESA research on high-performance light-metal alloys and nanocompositescitations
- 2011Numerical model of electrode induction melting for gas atomizationcitations
- 2011Multi-physics modeling in the electromagnetic levitation and melting of reactive metals
- 2011Continuous casting of titanium in the cold crucible
- 2010Magnetic levitation of large liquid volume
- 2010Magnetic levitation of a large mass of liquid metal
- 2009Vacuum arc remelting time dependent modelling
- 2009Solutions for the metal-bath interface in aluminium electrolysis cells
- 2009Effect of varying electromagnetic field on the VAR process
- 2008Vacuum arc remelting time dependent modelling
- 2008Modelling of electromagnetic levitation – consequences on non-contact physical properties measurementscitations
- 2007Pseudo-spectral solutions for fluid flow and heat transfer in electro-metallurgical applicationscitations
- 2007The study of flow and temperature fields in conducting droplets suspended in a DC/AC combination field
- 2007Liquid metal induction heating modelling for cold crucible applications
- 2006Busbar sizing modeling tools: comparing an ANSYS® based 3D model with the versatile 1D model part of MHD-Valdis
- 2006Numerical simulation of free surface behaviour of a molten liquid metal droplet with and without electromagnetic induction
- 2006Cold crucible melting of reactive metals using combined DC and AC magnetic fields
- 2006Experimental and numerical study of the cold crucible melting processcitations
- 2005Pseudo-spectral solutions for fluid flow and heat transfer in electro-metallurgical applications
- 2005Maximising heat transfer efficiency in the cold crucible induction melting process
- 2005The use of combined DC and AC fields to increase superheat in an induction skull melting furnace
- 2004Modelling induction skull melting design modificationscitations
- 2004The development and experimental validation of a numerical model of an induction skull melting furnacecitations
- 2003AC & DC magnetic levitation and semi-levitation modelling
- 2003Modelling induction skull melting design modifications
- 2003Experimental and numerical study of the cold crucible melting process
- 2001Modelling induction melting energy savings
- 2001Dynamics of magnetically suspended fluid
- 2000Modeling the dynamics of Magnetic Semilevitation Meltingcitations
Places of action
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document
Multiple timescale modelling of particle suspensions in metal melts subjected to external forces
Abstract
Electro-magnetic (EM) fields are widely used in metallurgy in order to stir conducting metals without the risk of contamination or causing an instability or chemical reaction. During the manufacturing of metal matrix composites (MMC), ceramic micro- and nano-particles are added into the metal melt, and ultrasonic (US) processing and EM stirring are used to break the agglomerates and to enhance the dispersion of the particles. EM stirring can also be used to remove the unwanted particles from liquid metal by pushing them towards the walls of the cru-cible where they adhere and can be easily removed.A model has been developed to account for the complex interaction of the particles with each other, with the walls, as well as with the flow of the metal melt. Particles are modelled as elastic spheres with adhesion. Adhesion is incorporated in the model using the Johnson, Kendal, Robert (JKR) and Derjaguin, Muller, Toporov (DMT) theories. The case of the oblique impact of the particles is modelled according to the Thornton and Yin method based on the partial-slip theory developed by Mindlin & Deresievics. The developed particle model is then coupled with the magneto-hydrodynamics (MHD) code PHYSICA in order to demonstrate the effect of the EM stirring and vibration.Multiple time-scales are used which permits modelling the realistic time range of metal-processing and at the same time capture the individual collisions between particles with suffi-cient precision. Several methods of predicting the particle collisions are employed and their ef-ficiency is compared for the case of removing contaminating particles from liquid metal