Affiliations: [a] Institute of Electrotechnology, Leibniz University of
Hannover, Hannover, Germany | [b] Laboratory for Mathematical Modelling of Environmental
and Technological Processes, University of Latvia, Riga, Latvia | Leibniz University of Hannover, Hannover, Germany | University of Pavia, Pavia, Italy | University of Padua, Padua, Italy
Correspondence:
[*]
Corresponding author: Sergejs Spitans, Institute of
Electrotechnology, Leibniz University of Hannover, Wilhelm-Busch Str. 4,
D-30167 Hannover, Germany. Tel.: +49 511 762 5116; Fax: +49 511 762 3275;
E-mail: spitans@etp.uni-hannover.de
Abstract: On account of ANSYS Classic, ANSYS Fluent and
ANSYS CFX-Post external coupling a new approach for joined simulation
of liquid metal flow, free surface dynamics and electromagnetic (EM) field in
induction furnaces is developed. The model is adjusted for the case of EM
levitation and extended on 3D consideration with application of standard
k-ω Shear Stress Transport (SST) or
précised Large Eddy Simulation (LES) turbulence description. Calculated steady state free surface shapes of molten metal are compared to other models
and experimental measurements in traditional and EM levitation induction
furnaces. Calculated free surface dynamics of melt is compared to analytical
estimation of free surface oscillation period. Parameter studies performed in ICF and conventional EM levitation setup briefly illustrate capabilities of the
model and demonstrate the influence of current, frequency, surface tension and
viscosity on free surface dynamics and steady shape of the melt in 2D approximation. Finally, full 3D calculation
of free surface dynamics in ICF using k-ω SST and LES turbulence models is performed and the impact of turbulence
model on meniscus is discussed.
