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http://ciateq.repositorioinstitucional.mx/jspui/handle/1020/725| Design and optimization of the internal geometry of a nozzle for a thin-slab continuous casting mold | |
| Fernando Sebastián Chiwo ANA DEL CARMEN SUSUNAGA NOTARIO JOSE ANTONIO BETANCOURT CANTERA Raúl Pérez Bustamante VICTOR HUGO MERCADO LEMUS JAVIER MENDEZ LOZOYA GERARDO BARRERA CARDIEL John Edison García Herrera HUGO ARCOS GUTIERREZ ISAIAS EMMANUEL GARDUÑO OLVERA | |
| Acceso Abierto | |
| Atribución-NoComercial-CompartirIgual | |
| https://www.mdpi.com/journal/designs | |
| https://www.mdpi.com/2411-9660/8/1/2 https://doi.org/10.3390/designs8010002 2411-9660 | |
| Thin-slab mold Jet oscillations Nozzle optimization Numerical simulation | |
| Understanding the phenomena that cause jet oscillations inside funnel-type thin-slab molds is essential for ensuring continuous liquid steel delivery, improving flow pattern control, and increasing plant productivity and the quality of the final product. This research aims to study the effect of the nozzle’s internal design on the fluid dynamics of the nozzle-mold system, focusing on suppressing vorticity generation below the nozzle’s tip. The optimized design of the nozzle forms the basis of the results obtained through numerical simulation. Mathematical modeling involves fundamental equations, the Reynolds Stress Model for turbulence, and the Multiphase Volume of Fluid model. The governing equations are discretized and solved using the implicit iterativesegregated method implemented in FLUENTR. The main results demonstrate the possibility of controlling jet oscillations even at high casting speeds and deep dives. The proposed modification in the internal geometry of the nozzle is considered capable of modifying the flow pattern inside the mold. The geometric changes correspond with 106% more elongation than the original nozzle; the change is considered 17% of an inverted trapezoidal shape. Furthermore, there was a 2.5 mm increase in the lower part of both ports to compensate for the inverted trapezoidal shape. The newly designed SEN successfully eliminated the issue of jet oscillations inside the mold by effectively preventing the intertwining of the flow. This improvement is a significant upgrade over the original design. At the microscale, a delicate force balance occurs at the tip of the nozzle’s internal bifurcation, which is influenced by fluctuating speeds and ferrostatic pressure. Disrupting this force balance leads to increased oscillations, causing variations in the mass flow rate from one port to another. Consequently, the proposed nozzle optimization design effectively controls microscale fluctuations above this zone in conjunction with changes in flow speed, jet oscillation, and metal–slag interface instability. Author contributions: Conceptualization, F.S.C., A.d.C.S.-N., J.A.B.-C., R.P.-B., V.H.M.-L., J.M.-L., G.B.-C., J.E.G.-H., H.A.-G. and I.E.G.; methodology, F.S.C., A.d.C.S.-N., J.A.B.-C., R.P.-B., V.H.M.-L., J.M.-L., G.B.-C., J.E.G.-H., H.A.-G. and I.E.G.; software, F.S.C., A.d.C.S.-N., H.A.-G. and I.E.G.; validation, F.S.C., A.d.C.S.-N., J.A.B.-C., R.P.-B., V.H.M.-L., J.M.-L., J.E.G.-H., H.A.-G. and I.E.G.; formal analysis, F.S.C., A.d.C.S.-N., J.A.B.-C., R.P.-B., V.H.M.-L., J.E.G.-H., H.A.-G. and I.E.G.; writing—original draft preparation, F.S.C., A.d.C.S.-N., J.A.B.-C., R.P.-B., V.H.M.-L., J.M.-L., G.B.-C., J.E.G.-H., H.A.-G. and I.E.G.; writing—review and editing, F.S.C., A.d.C.S.-N., J.M.-L., H.A.-G. and I.E.G.; project administration, G.B.-C., H.A.-G. and I.E.G.; All authors have read and agreed to the published version of the manuscript. Funding: This research received no external funding. Data Availability Statement: Data are contained within the article. Acknowledgments: I.E. Garduno, H. Arcos–Gutiérrez, and J.E. García–Herrera gratefully acknowledge support from the Investigadores por México CONAHCYT program through project No. 674. J.A. Betancourt–Cantera, V.H. Mercado-Lemus, and R. Pérez–Bustamante acknowledge support from the Investigadores por México CONAHCYT program through project No. 850. A. Susunaga–Notario acknowledges support from the Investigadores por México CONAHCYT program through project No. 223. F.S. Chiwo and I.E. Garduno acknowledge support from COPOCYT Fideicomiso 23871 “Multas Electorales Convocatoria 2021–01” through the project “Optimización de Parámetros en Procesos de Moldeo por Inyección de Plásticos con Enfoque Hacia Manufactura 4.0”. Conflicts of Interest: The authors declare no conflicts of interest. | |
| MDPI | |
| 2024 | |
| Artículo | |
| Designs, vol. 8, no. 1, pág. 2. | |
| Inglés | |
| Público en general | |
| Chiwo, F. S., Susunaga-Notario, A. del C., Betancourt-Cantera, J. A., Pérez-Bustamante, R., Mercado-Lemus, V. H., Méndez-Lozoya, J., Barrera-Cardiel, G., García-Herrera, J. E., Arcos-Gutiérrez, H., & Garduño, I. E. (2024). Design and optimization of the internal geometry of a nozzle for a thin-slab continuous casting mold. Designs, 8(1), 2. https://doi.org/10.3390/designs8010002 | |
| OTRAS | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos Publicados en Revistas Indexadas |
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