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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium CFD Modeling and Simulation in Materials Processing
Presentation Title Numerical Study of a Levitated Silicon Droplet for Solar Grade Silicon Refining
Author(s) Lei Gao, Guifang Zhang, Yingdong Yang, Zhe Shi, Benhui Shi, Peng Yan, Hua Wang
On-Site Speaker (Planned) Guifang Zhang
Abstract Scope Electromagnetic levitation(EML) is a potential technique for material refining, and was adopted to manipulate solar grade silicon(SoG-Si) from metallurgical grade silicon(MG-SI). With precisely controlled thermodynamic conditions, the stubborn impurities inside MG-SI, namely phosphorus and boron can be removed during levitation. However, the electrical conductivity of silicon is very sensitive to the temperature variation, which may cause the unstable oscillation of the levitated droplet. Besides, the effectivity of the refining process was all depends on the transfer process of the levitated molten silicon and the surrounded gas, which is hardly observed through experimental work. To predict silicon droplet levitated under high frequency AC electromagnetic field, a verified 3D numerical model was developed in the present study. The model was also coupled with commercial CFD software to predict transfer process during levitated silicon refining. The purpose is to indicate more details for this opaque process, and provide guidance for precise control.
Proceedings Inclusion? Planned: None Selected

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Comparison of the Volume-averaged and Continuum Mixture Approaches for Modeling Equiaxed Solidification
A Multiphase CFD Model for the Prediction of Particulate Accumulation in a Laser Powder Bed Fusion Process
A Theoretical Study on Removal of Inclusions from Molten Steel during Ingot Casting by Filtration
An Innovative Modeling Approach for Predicting the Desulfurization Kinetics in an Argon-Stirred Ladle Furnace
CFD Modeling of Transport Phenomena and Inclusion Removal in a Gas-stirred Ladle
CFD Modelling of High Pressure Gas Atomization of Liquid Metals
Computational Analysis of Thermo-fluid Dynamics with Metallic Powder in SLM
Correlation of Heat Transfer Coefficient in Quenching Process Using ABAQUS
Coupling of VOF and DPM Models to Simulate the Melt Flow and Bubbles Behavior in the RH Process
Discussion on Pouring Process Parameters Based on Slow Solidification Experiment of Extra - Thick Plate Mold
Effect of Carbide Configuration on the Current Distribution in Submerged Arc Furnaces for Silicon Production – A Modelling Approach
Effect of Hook Formation during Initial Solidification on Distribution of Subsurface Inclusions in Ultralow Carbon Steel Slabs
Effect of Inlet Velocities on Mould Filling in Investment Casting
Effect of Shrouding Nozzles Arrangement on Flow Field and Stirring Ability of Coherent Jet in EAF Steelmaking Process
Evaporation and Diffusion of Mn in Inert Systems
Finite Element Modelling of Electrokinetic Deposition of Zinc on Mild Steel with ZnO-Citrus Sinensis as nano-additive
Implementing CFD Modelling to Address Defect Formation in Core Injection Moulding
Investigation of Combustion and Heat Transfer in an Industrial Reheating Furnace Using CFD
Massively Parallel GPU Lattice Boltzmann Method for 3D Alloy Solidification and Solute Transport
Mathematical Model for Gas Fired Rorary Hearth Furnace for Sponge Iron Production
Microstructure Effects in High-pressure Die Casting Using an Innovative Two-phase Cooling System
Modeling of Argon Gas Behavior in Continuous Casting of Steel
Modeling of Cooling System in Nitrogen Cooled Aluminum Extrusion Molds and Investigation of Its Effect on Profile Surface
Modeling of the Effect of Ultrasonic Frequency and Amplitude on Acoustic Streaming
Modeling on Macrosegregation in Molten Steel with a Barrel Sampler
Modeling the De-agglomeration and Dispersion of Particles in Metallic Alloy Melts during Ultrasonic Treatment
Modelling Directional Solidification in a Transverse Magnetic Field Validated via High Speed Synchrotron X-Ray Tomography
Numerical Analysis of Heat and Mass Transfer on the Self-densification of Metal Hydride Tank
Numerical Investigation of Oxygen Transport Behavior and Composition Changes in Protective Gas Electroslag Remelting Process
Numerical Investigation on the Effect of Steel Strip Feeding on Solidification in Continuous Casting
Numerical Model to Estimate Tool Wear and Pin Shape during Friction Stir Welding of CuCrZr Alloy
Numerical Modeling and Experimental Verification of Macrosegregation and CET Predictions in Large Steel Roll Ingots
Numerical Modelling of Shrinkage and Hot Tears in High Pressure Die Casting of Al-Si-Cu Alloys
Numerical Simulation of Electromagnetic and Heat Transfer Phenomena in Inductively Heated Risers
Numerical Simulation of Turbulence Flow and Solidification in a Bloom Continuous Casting Mould with Electromagnetic Stirring
Numerical Simulation of Volatilization of Fluoride Slag in Vacuum Electroslag Remelting Process and its Laboratory Validation
Numerical Simulation on Solidification Structure of 30Cr2Ni4MoV Steel Under Different Temperature Gradient Using Procast Software
Numerical Study of a Levitated Silicon Droplet for Solar Grade Silicon Refining
Prediction of Air Entrapment in High Pressure Die Casting Applications
Recent Development and Applications of CFD Simulation for Friction Stir Welding
Research on the Flow Properties and Erosion Characteristics in Combined Blown Converter at Steelmaking Temperature
Simulation Analysis on the Solidification Quality of Heavy Compatible Split Type Ingot
Simulation of Non-metallic Inclusion Deposition and Clogging of Nozzle
The Influence of Coil Configuration on Fluid Flow and Solidification of Electromagnetically Stirred Aluminum Alloys
Validation of a Model for Predicting Air Entrainment during Pouring of Metal Castings

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