Effects of Angle of Rotation of Submerged Entry Nozzle on Fluid Flows in a Square Billet Casting Mold
Why this work is in the frame
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Bibliographic record
Abstract
Having knowledge of fluid flows within the mold region of a billet continuous caster is of paramount importance to reduce a product’s internal and external defects. In this regard, a three-dimensional numerical model was developed to simulate the influence of the orientation of a five-port submerged entry nozzle (SEN) on the flow field of liquid steel within the mold region of a curved, square billet, continuous caster. The realizable k– $$ \epsilon $$ turbulence model, together with the volume of fluid multiphase model, was used to simulate the effects of turbulence on these fluid flows, and their impact on the liquefied mold powder layer sitting on top of the liquid steel within the mold. The behavior of flows generated in the mold cavity was validated against previous experimental work. The numerical results showed that the modified SEN’s horizontal angle of rotation can significantly change the flow pattern within the billet mold. These changes can stabilize the liquid steel meniscus, which is expected to improve the quality of continuously cast products by decreasing mold powder entrainment.
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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 | 0.000 | 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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it