Numerical modelling of continuous casting of round billets with turbulence in the melt

Mramor, Katarina (author), Rek, Zlatko (author), Vertnik, Robert (author), Šarler, Božidar (author)

The present work aims to solve the continuous casting benchmark problem in axisymmetry with turbulence in the melt by the meshless method. The physical model of the liquid-solid system that involves mass, momentum and energy conservation is formulated in the mixture continuum approximation. The melt is assumed Newtonian and incompressible. A k-epsilon Reynolds averaged Navier-Stokes turbulence model is implemented with Abe-Kondoh-Nagano closures. The mushy region is modelled as a Darcy porous media with the Kozeny-Carman permeability model. The solution of partial differential equations is implemented locally using collocation with radial basis functions and explicit time-stepping. The velocity pressure coupling is performed using the fractional step method. The validation of the model is assessed by comparing its outcomes with the results of the finite volume method. A sensitivity study of the varying casting speed and temperature on the velocity, temperature, and solid fraction fields is shown.

• Language: English
• Keywords: continuous casting of steel, CFD, turbulence modeling, meshless methods
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2024
• Number of pages: 6 str.
• Numbering: Vol. 2766, art.012200
• PID: 20.500.12556/RUL-158326
• UDC: 519.62:621.74
• ISSN on article: 1742-6596
• DOI: 10.1088/1742-6596/2766/1/012200
• COBISS.SI-ID: 197863171
• Publication date in RUL: 05.06.2024

Record is a part of a proceedings

• Title: Eurotherm 2024
• COBISS.SI-ID: 197654787

Record is a part of a journal

• Title: Journal of physics. Conference series
• Publisher: Institute of Physics Publishing
• ISSN: 1742-6596
• COBISS.SI-ID: 2035044

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: kontinuirno ulivanje jekla, računalniška dinamika tekočin, modeliranje turbulence, brezmrežna metoda

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: J2-4477
• Name: Razvoj inovativnih brezmrežnih metod za večfizikalne in večnivojske simulacije vrhunskih tehnologij

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P2-0162
• Name: Tranzientni dvofazni tokovi (2009-2021) -> Večfazni sistemi (2022-2027)