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On the explicit resolution of the mushy zone in the modelling of the continuous casting of alloys
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Univ Sao Paulo Sao Carlos, Dept Appl Math & Stat, Inst Math & Comp Sci, POB 668, BR-13560970 Sao Carlos, SP, Brazil.ORCID iD: 0000-0002-8318-1251
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Kanthal, Sandvik Heating Technol, Sorkvarnsvagen 3, S-73427 Hallstahammar, Sweden.ORCID iD: 0000-0001-9437-3550
2017 (English)In: Applied Mathematical Modelling, ISSN 0307-904X, E-ISSN 1872-8480, Vol. 50, 544-568 p.Article in journal (Refereed) Published
Abstract [en]

In the continuous casting of alloys, it is well-known that the mushy zone is decisive for the final properties of the casting. Most numerical models' for the process use enthalpy based methods on fixed grids which determine the extent the mushy zone implicitly. Here, on the other hand, we develop a methodology for explicitly resolving the geometrical extent of the mushy zone; this involves a sharp-interface formulation to solve a dual moving boundary problem to locate the solidus and liquidus isotherms. The results compare favourably with those from enthalpy-based methods, and the advantages of our approach with respect to future multiphysics calculations are discussed. 

Place, publisher, year, edition, pages
ELSEVIER SCIENCE INC , 2017. Vol. 50, 544-568 p.
Keyword [en]
Continuous casting, Alloys, Boundary immobilization
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-215800DOI: 10.1016/j.apm.2017.06.007ISI: 000411534700032Scopus ID: 2-s2.0-85028018216OAI: oai:DiVA.org:kth-215800DiVA: diva2:1150232
Note

QC 20171018

Available from: 2017-10-18 Created: 2017-10-18 Last updated: 2017-10-18Bibliographically approved

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Vynnycky, MichaelSaleem, Saud

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