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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Aluminum Reduction Technology
Presentation Title Recent Improvements to a Mathematical Model Replicating the Wave and Stream at the Bath-metal Interface
Author(s) Thomas Richer, Lukas Dion, Laszlo Kiss, Sébastien Guérard, Jean-françois Bilodeau, Guillaume Bonneau, Martin Truchon
On-Site Speaker (Planned) Thomas Richer
Abstract Scope A mathematical model has been developed to reproduce the tridimensional interface between bath and metal in an electrolysis cell. In the last year, the mathematical model has been adapted to consider alumina rafts movements in tridimensional coordinates. Among the geometrical challenges inherent to such improvement, it was necessary to properly introduce concepts such as “stream”, “interfacial forces”, and “buoyancy force”. Hence, the model uses interfacial phenomena to reproduce the movement of alumina raft at the bath-metal interface. The potential of such tracking is shown under different cell condition. In order to achieve an accurate reproduction of real cell condition, it is necessary to validate the correct behavior of the model following these recent changes. This paper detail the scope of the modifications applied to the model, the validation steps necessary to assure an appropriate level of reliability and show the raft tracking potential for industrial application.
Proceedings Inclusion? Planned: Light Metals
Keywords Modeling and Simulation, Aluminum


Achieving Low Pot Failure Rate at Aditya Aluminium
Application of Cell Retrofit in GP320 Aluminum Reduction Cell Line
CFD Modelling of Solidification and Melting of Bath during Raft Formation
Dissimilar Results in Restarting Two Different Potlines
Evaluation of Methodologies for Assessment of SO3 Concentration in Industrial Off-gas
Experimental Investigation of the Alumina Cloud During Alumina Injections in Low And High Temperature Conditions
Fundamental Mass Transfer Correlations Based on Experimental and Literature Data
Fundamentals of Pot Ventilation in Aluminum Smelters
Mathematical Modelling of the Desulfurization of Electrolysis Cell Gases in a Low Temperature Reactor
Numerical Investigation of the Thermal, Electrical and Mechanical Behaviour of Aluminum Reduction Cell during Preheating Phase
Potential of Production Al-Si Green Alloys in AP18 Aluminium Reduction Cell
Preheat, Start-up and Early Operation of DX+ Ultra Pots at 500 kA
Recent Improvements to a Mathematical Model Replicating the Wave and Stream at the Bath-metal Interface
Restart of Albras’ Potline 2 – Improving Performance and Changing Paradigms
Simplified 3D MHD Model for Quick Evaluation of Aluminium Electrolysis Cell Design
The Expanded Industrial Pilot of SAMI’s NCCT+ Technology
The SY500 Potline Technology Development

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