Numerical Modelling of Metal/Flux Interface in a Continuous Casting Mould

• Autorzy: Jowsa J. , Bielnicki M. , Cwudziński A.

Identyfikatory

DOI

10.1515/amm-2015-0464

Warianty tytułu

PL

Modelowanie numeryczne powierzchni międzyfazowej metal/ciekły żużel w krystalizatorze do ciągłego odlewania stali

• Języki publikacji: EN

Abstrakty

EN

The behaviour of liquid slag in the mould is one of the key research areas of the continuous steel casting process. Numerical simulations of steel casting in the mould equipped with submerged entry nozzle, intended for slab casting, have been carried out within the study. For modelling the behaviour of the interfaces of the liquid steel - liquid slag - air system, the VOF method was employed. In the conducted simulations, seven different procedures for the discretization of the interface of individual phases were tested. The computation results have revealed that the “entrapment” of fine slag portions into liquid steel occurs in the system under investigation; the cause of this phenomenon is explicated by the Kelvin-Helmholtz theory.

PL

Badania zachowania się ciekłego żużla w krystalizatorze mają istotne znaczenie dla procesu ciągłego odlewania stali. W pracy przeprowadzono symulacje numeryczne odlewania stali w krystalizatorze z wylewem zanurzeniowym, przeznaczonym do odlewania wlewków płaskich. Do modelowania zachowania się granic międzyfazowych układu: ciekła stal – ciekły żużel – powietrze zastosowano metodę Volume of Fluid (VOF). Podczas prowadzonych symulacji weryfikowano siedem różnych procedur dla dyskretyzacji granicy rozdziału poszczególnych faz. Wyniki obliczeń wykazały, że w badanym układzie dochodzi do „zaciągania” drobnych porcji żużla do ciekłej stali, przyczynę tego zjawiska tłumaczy teoria Kelvina-Helmholtza.

Słowa kluczowe

EN

continuous casting; numerical simulation; volume of fluid method (VOF); interface tracking schemes; mould flux entrainment

PL

odlewanie ciągłe; symulacja numeryczna; VOF; powierzchnia międzyfazowa metal-żużel; katalizator

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 4
• Strony: 2905--2912
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Jowsa J.

• Czestochowa University of Technology, Department of Metals Extraction and Recirculation, Faculty of Production Engineering and Materials Technology, 19 Armii Krajowej Av., 42-201 Czestochowa, Poland

autor

Bielnicki M.

• Czestochowa University of Technology, Department of Metals Extraction and Recirculation, Faculty of Production Engineering and Materials Technology, 19 Armii Krajowej Av., 42-201 Czestochowa, Poland

autor

Cwudziński A.

• Czestochowa University of Technology, Department of Metals Extraction and Recirculation, Faculty of Production Engineering and Materials Technology, 19 Armii Krajowej Av., 42-201 Czestochowa, Poland

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.