| 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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Banaszek, Jerzy
Warsaw University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2019The two-domain model of solute transport in binary alloy
- 2019Numerical study of crystal growth kinetics influence on prediction of different dendritic zones and macro-segregation in binary alloy solidificationcitations
- 2018Influence of crystal growth kinetics on prediction of macro segregation by micro-macroscopic simulation of binary alloy solidification
- 2015Front tracking method in modeling transport phenomena accompanying liquid–solid phase transition in binary alloys and semitransparent mediacitations
- 2015Tracking an envelope of columnar dendrites on an unstructured control volume grid
- 2015Micro-macro model for prediction of local temperature and concentration distribution in two-phase media
- 2014Micro-macro model for prediction of local temperature distribution in heterogeneous and two-phase media
- 2011Front Tracking Based Numerical Investigation of Relations Between Columnar Dendrites Permeability and Macrosegregation Evolution
- 2010Front Tracking Based Macroscopic Calculations of Columnar and Equiaxed Solidification of a Binary Alloycitations
- 2006Columnar-to-Equiaxed Transition in SOLidification Processing (CETSOL): A project of the European Space Agency (ESA) - Microgravity Applications Promotion (MAP) programmecitations
- 2006Prediction of the formation of an equiaxed zone ahead of a columnar front in binary alloy castingscitations
- 2005A front-tracking method of predicting the solidification microstructure in shape castings
- 2005Modelling columnar dendritic growth into an undercooled metallic melt in the presence of convectioncitations
Places of action
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article
Modelling columnar dendritic growth into an undercooled metallic melt in the presence of convection
Abstract
A front-tracking technique on a fixed Cartesian grid, based on the kinetics of dendritic growth, is used to model the progress of anundercooled columnar dendritic front in non-equilibrium 2D solidification controlled by conduction and thermal natural convection. The effectof the alloy latent heat of fusion is included in this single-domain model through a careful definition of source terms in the energy conservationequation to account for both the advance of solidification front and subsequent thickening of the mushy zone within a control volume. The modelis compared with the enthalpy approach showing its superiority in the detection of the undercooled liquid zone and, thus, in potentiallymodelling of columnar/equiaxed grain structures. It is used to predict the influence of both alloy composition and convective heat transfercoefficient on the size of the undercooled liquid zone in front of columnar dendrite tips during solidification of Al–Cu in a square mould. Thepredictions obtained confirm that natural convection in the melt reduces local temperature gradients and thus widens the undercooled liquid zoneahead of a curve joining columnar dendrite tips, increasing the potential for growth of equiaxed grains