Angular Re‐Positioning of a Five Ported SEN versus EMS Braking to Stabilize Flows at the Upper Slag‐Liquid Steel Interface
Bibliographic record
Abstract
The control of fluid flows within the mold region of continuous casters is a key factor in improving the quality of cast products. The performance of two different flow modifiers in the curved mold region of a typical square billet caster are compared. The flow modifiers investigated in this work are a 5‐ported Submerged Entry Nozzle (SEN) and a Brake‐Electromagnetic Stirring (Brake‐EMS) unit, interacting with a Main‐EMS. Two different commercial software programs, ANSYS Fluent and COMSOL, are used to develop a numerical Magneto‐Hydro‐Dynamic (MHD) model of this system, in order to study the efficiency of the selected flow modifiers. According to the simulated results, the dual‐EMS unit (Brake‐EMS together with Main‐EMS), intensifies the swirling flows in the mid‐region of the mold, but cannot decrease the intensive vertical upward flows that are being generated toward the meniscus corners. The proposed radial angulation of the SEN's exit ports, working in tandem with the Main‐EMS, not only develops swirling flows at the mid‐section of the mold, but also transforms the vertical upward flows to a horizontally rotating flow near to the upper surface of the caster. This slight modification calmed flows at the liquid steel meniscus, thereby reducing mold powder entrainment (MPE).
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".