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Numerical analysis on the similarity between steel ladles and hot-water models regarding natural convection phenomena
Luleå tekniska universitet.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
2002 (English)In: ISIJ International, ISSN 0915-1559, E-ISSN 1347-5460, Vol. 42, no 1, p. 53-62Article in journal (Refereed) Published
Abstract [en]

The similarity between steel ladles and hot-water models regarding natural convection phenomena has been systematically analysed through examination of the numerical solutions of turbulent Navier-Stokes partial differential equations governing the phenomena in question. The numerical solutions have been obtained by using a computational fluid dynamics (CFD) simulation method. Key similarity criteria for nonisothermal physical modelling of steel ladles with hot-water models have been derived. Accordingly, appropriate conditions fulfilling the above criteria, such as model size, water temperature, time scale factor and the scale factor of boundary heat loss fluxes, have been proposed and discussed. As a result, water models with geometry scales between 1/5 and 1/3 and using hot-water of temperature higher than 45 deg C are appropriate for simulating natural convection phenomena in steel ladles.

Place, publisher, year, edition, pages
2002. Vol. 42, no 1, p. 53-62
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-8543DOI: 10.2355/isijinternational.42.53ISI: 000174668300007Local ID: 70e981a0-6ffa-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-8543DiVA, id: diva2:981481
Note
Validerad; 2002; 20061109 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Björkman, Bo

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