https://doi.org/10.1140/epjp/s13360-024-05629-7
Regular Article
Equalisation the toroidal and poloidal kinetic energies of liquid metal stirring flow
Laboratory of Technological Hydrodynamics, Institute of Continuous Media Mechanics of the Ural Branch of RAS, Acad. Korolev St., 1, 614013, Perm, Perm Krai, Russia
Received:
15
July
2024
Accepted:
7
September
2024
Published online:
23
September
2024
In this paper, liquid metal flows in cylindrical cells under the influence of alternating rotating magnetic fields are numerically investigated. The results for two variants of the rotating magnetic field distribution are compared. In the first case, all fields rotate in the same direction. In the second case, the rotation directions of the magnetic fields alternate along the height of the cell. The problem formulation was based on the equations of hydrodynamics and electrodynamics of continuous media. The numerical simulations are performed by using the ANSYS Emag and Fluent software. The mathematical model verification was performed using the results of three experiments where the magnetic field, electromagnetic force, and velocity profile were measured. Hydrodynamic processes occurring at both magnetic field configurations were compared using numerical simulations. The results show that the second mode significantly complicates the toroidal and poloidal components of liquid metal flow in a cylindrical cell. The reverse direction of the rotating magnetic field allows us to generate oscillating poloidal flow in the whole volume of the cell. The intensities of the poloidal and toroidal components turn out to be almost equal, which indicates the complexity of the flow. Such a system could find applications in the metallurgical industry for homogenising the properties of the melt and in the power industry for homogenising the composition of the molten anode or cathode in liquid metal batteries, in addition to electro-vortex flow.
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