Meshless simulation of a macrosegregation benchmark considering the solid motion

Govže, Viktor (author), Vušanović, Igor (author), Šarler, Božidar (author)

We have extended the existing two-dimensional rigid solid phase benchmark for binary substance with the solid phase motion in the present paper. Incompressible laminar Newtonian flow is assumed, and a standard mixture formulation is used for the mass, momentum, energy, and solute transport. A coherency solid motion model accounts for the free-floating grains, assuming that the solid velocity is proportional to the mixture velocity and the liquid fraction. The lever rule is used to describe the mass fractions of the phases. A two-dimensional benchmark is solved using the semi-implicit meshless diffuse approximate method with an adaptive subdomain upwinding strategy. The results of the meshless method are compared to the finite volume method results with a reasonable agreement. The new benchmark results show that the solid motion has an essential effect on the macrosegregation pattern.

• Language: English
• Keywords: solidification, meshless methods, grain motion, benchmarks
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Author Accepted Manuscript
• Year: 2023
• Number of pages: 8 str., art. 012039
• Numbering: Vol. 1281
• PID: 20.500.12556/RUL-146351-0bd226f5-49ec-577b-5a5f-460eeb17748b
• UDC: 519.61
• ISSN on article: 1757-8981
• DOI: 10.1088/1757-899X/1281/1/012039
• COBISS.SI-ID: 153238787
• Publication date in RUL: 24.05.2023

Record is a part of a proceedings

• Title: MCWASP 2023
• COBISS.SI-ID: 153238531

Record is a part of a journal

• Title: IOP conference series. Materials science and engineering
• Publisher: IOP Publishing
• ISSN: 1757-8981
• COBISS.SI-ID: 1814101

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• License: CC BY 3.0, Creative Commons Attribution 3.0 Unported
• Link: https://creativecommons.org/licenses/by/3.0/deed.en
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Secondary language

• Language: Slovenian
• Keywords: strjevanje, brezmrežne metode, gibanje zrn, testni primeri