Zhongqiu Liu, Alexander Vakhrushev
Large eddy simulation (LES) of transient magnetohydrodynamic (MHD) turbulent flow under a single-ruler electromagnetic brake (EMBr) in a laboratory-scale, continuous-casting mold is presented. The influence of different electrically-conductive boundary conditions on the MHD flow and electromagnetic field was studied, considering two different wall boundary conditions: insulating and conducting. Both the transient and time-averaged horizontal velocities predicted by the LES model agree well with the measurements of the ultrasound Doppler velocimetry (UDV) probes. Q-criterion was used to visualize the characteristics of the three-dimensional turbulent eddy structure in the mold. The turbulent flow can be suppressed by both configurations of the experiment's wall (electrically-insulated and conducting walls). The shedding of small-scale vortices due to the Kelvin–Helmholtz instability from the shear at the jet boundary was observed. For the electrically-insulated walls, the flow was more unstable and changed with low-frequency oscillations. However, the time interval of the changeover was flexible. For the electrically-conducting walls, the low-frequency oscillations of the jets were well suppressed; a stable double-roll flow pattern was generated. Electrically-conducting walls can dramatica.
@article{f59ca0c1-42b5-41c2-afe4-55ceeb539499,
title={Effect of an Electrically Conducting Wal},
author={Zhongqiu Liu and Alexander Vakhrushev},
year={2026},
language={en}
}TY - JOUR TI - Effect of an Electrically Conducting Wal AU - Zhongqiu Liu AU - Alexander Vakhrushev PY - 2026 LA - en ER -
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