Activities
Objective 01
Modelling of melt flow under the influence of a special type of electromagnetic field (EMF) in an isothermal configuration
Activities - Objective 01
1.1. Development of STHAMAS3D software in order to model the EMF configuration with 2 or more electrodes.
1.2. Perform numerical computations of the fluid flow for different values of the vertical magnetic field and electrical current for an isothermal configuration with 2 electrodes.
1.3. Perform numerical computations of the fluid flow for different values of the vertical magnetic field and electrical current for an isothermal configuration with 4 electrodes.
1.4 Development of STHAMAS3D in order to run on the IBM Blue Gene supercomputer.
1.5 Comparison of numerical simulations with experimental results obtained in the model experiment (Objective 2).
Objective 02
Experimental study of melt flow under the influence of a special type of electromagnetic field (EMF) in a model experiment
Activities - Objective 02
2.1 Design and build the coil for generating the magnetic field. The magnetic field produced by the coil will be measured with the magnetometer.
2.2. Design and build the plexiglas crucible together with the electrodes system and their power supply.
2.3. Acquisition of the ultrasound Doppler velocimeter (UDV). Mount UDV sensors at the outer wall of the mould. Perform tests for measuring the flow velocities.
2.4. Perform flow velocity measurements for different values of magnetic field and electrical current.
2.5 Comparison of experimental results with numerical simulations and dissemination of the results (WUT+INES)
Objective 03
Modelling of melt flow and impurities distribution under the influence of EMF in an industrial scale directional solidification furnace for multicrystalline silicon growth
Activities - Objective O3
3.1. Perform numerical computations of melt flow and interface shape in an industrial scale furnace under the influence of EMF with 2 and 4 electrodes for different values of magnetic field and electrical current.
3.2. Implementation in STHAMAS3D of a model for precipitates formation.
3.3. Perform numerical computations for impurities and precipitates distribution under the influence of the EMF, for different values of magnetic field and electrical current.
3.4. Perform a parametric study in order to study the influence of temperature gradient in the melt, growth rate and crucible aspect ratio on the interface shape and on impurities and precipitates distribution.