Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold
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...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-12-01
|
| Series: | Designs |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2411-9660/8/1/2 |
| _version_ | 1797298492103720960 |
|---|---|
| author | Fernando S. Chiwo Ana del Carmen Susunaga-Notario José Antonio Betancourt-Cantera Raúl Pérez-Bustamante Víctor Hugo Mercado-Lemus Javier Méndez-Lozoya Gerardo Barrera-Cardiel John Edison García-Herrera Hugo Arcos-Gutiérrez Isaías E. Garduño |
| author_facet | Fernando S. Chiwo Ana del Carmen Susunaga-Notario José Antonio Betancourt-Cantera Raúl Pérez-Bustamante Víctor Hugo Mercado-Lemus Javier Méndez-Lozoya Gerardo Barrera-Cardiel John Edison García-Herrera Hugo Arcos-Gutiérrez Isaías E. Garduño |
| author_sort | Fernando S. Chiwo |
| collection | DOAJ |
| description | 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 iterative-segregated method implemented in FLUENT<sup>®</sup>. 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. |
| first_indexed | 2024-03-07T22:35:38Z |
| format | Article |
| id | doaj.art-915590f548314b568e12cf57b1e33fc5 |
| institution | Directory Open Access Journal |
| issn | 2411-9660 |
| language | English |
| last_indexed | 2024-03-07T22:35:38Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Designs |
| spelling | doaj.art-915590f548314b568e12cf57b1e33fc52024-02-23T15:13:36ZengMDPI AGDesigns2411-96602023-12-0181210.3390/designs8010002Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting MoldFernando S. Chiwo0Ana del Carmen Susunaga-Notario1José Antonio Betancourt-Cantera2Raúl Pérez-Bustamante3Víctor Hugo Mercado-Lemus4Javier Méndez-Lozoya5Gerardo Barrera-Cardiel6John Edison García-Herrera7Hugo Arcos-Gutiérrez8Isaías E. Garduño9CIATEQ A.C., Eje 126 No. 225, Zona Industrial del Potosí, San Luis Potosí 78395, MexicoCONAHCYT—ICAT Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, Circuito Escolar s/n, Ciudad Universitaria, Col. UNAM, C.U., Delegación Coyoacán, Ciudad de Mexico 04510, MexicoCONAHCYT—Corporación Mexicana de Investigación en Materiales (COMIMSA), Ciencia y Tecnología No. 790, Fraccionamiento Saltillo 400, Saltillo 25290, MexicoCONAHCYT—Corporación Mexicana de Investigación en Materiales (COMIMSA), Ciencia y Tecnología No. 790, Fraccionamiento Saltillo 400, Saltillo 25290, MexicoCONAHCYT—Corporación Mexicana de Investigación en Materiales (COMIMSA), Ciencia y Tecnología No. 790, Fraccionamiento Saltillo 400, Saltillo 25290, MexicoInstituto Tecnológico de San Luis Potosí, Tecnológico S/N, Col. Unidad, Ponciano Arriaga, Soledad de Graciano Sánchez 78436, MexicoInstituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, MexicoCONAHCYT—CIATEQ A.C., Eje 126 No. 225, Zona Industrial del Potosí, San Luis Potosí 78395, MexicoCONAHCYT—CIATEQ A.C., Eje 126 No. 225, Zona Industrial del Potosí, San Luis Potosí 78395, MexicoCONAHCYT—CIATEQ A.C., Eje 126 No. 225, Zona Industrial del Potosí, San Luis Potosí 78395, MexicoUnderstanding 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 iterative-segregated method implemented in FLUENT<sup>®</sup>. 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.https://www.mdpi.com/2411-9660/8/1/2thin-slab moldjet oscillationsnozzle optimizationnumerical simulation |
| spellingShingle | Fernando S. Chiwo Ana del Carmen Susunaga-Notario José Antonio Betancourt-Cantera Raúl Pérez-Bustamante Víctor Hugo Mercado-Lemus Javier Méndez-Lozoya Gerardo Barrera-Cardiel John Edison García-Herrera Hugo Arcos-Gutiérrez Isaías E. Garduño Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold Designs thin-slab mold jet oscillations nozzle optimization numerical simulation |
| title | Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold |
| title_full | Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold |
| title_fullStr | Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold |
| title_full_unstemmed | Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold |
| title_short | Design and Optimization of the Internal Geometry of a Nozzle for a Thin-Slab Continuous Casting Mold |
| title_sort | design and optimization of the internal geometry of a nozzle for a thin slab continuous casting mold |
| topic | thin-slab mold jet oscillations nozzle optimization numerical simulation |
| url | https://www.mdpi.com/2411-9660/8/1/2 |
| work_keys_str_mv | AT fernandoschiwo designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT anadelcarmensusunaganotario designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT joseantoniobetancourtcantera designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT raulperezbustamante designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT victorhugomercadolemus designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT javiermendezlozoya designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT gerardobarreracardiel designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT johnedisongarciaherrera designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT hugoarcosgutierrez designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold AT isaiasegarduno designandoptimizationoftheinternalgeometryofanozzleforathinslabcontinuouscastingmold |