A model of gas-stirred ladle
1995 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 24, no 5-6, 194-206 p.Article in journal (Refereed) Published
Background/aims: A research program with the objective of studying the separation of non-metallic inclusions is currently being undertaken by the Swedish Steel Producers' Association. The aim is to develop a pc-based model that can easily be used by the participating steel companies. important inputs to the model are, among other parameters, data for steel velocities and dissipation of turbulent kinetic energy. Results and conclusion: A 2-dimensional two-phase mathematical model for a gas-stirred ladle has been developed. This model differs from existing models in that the nozzle and plume areas have been modeled more realistically. The predicted data of gas fraction and velocity in a water model agree well with experimental data found in the literature. The calculated surface velocities in an argon gas-stirred ladle are of the same order of magnitude as experimental data. However, the experimental surface velocity measurements are not sufficiently accurate to permit a closer comparison. Predicted bubble rising velocities for an argon-stirred steel ladle agree well with existing experimental data.
Place, publisher, year, edition, pages
1995. Vol. 24, no 5-6, 194-206 p.
gas-stirring, ladle metallurgy, modelling
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-13647ISI: A1995UH30900002OAI: oai:DiVA.org:kth-13647DiVA: diva2:326302
NR 201408042010-06-222010-06-222013-02-24Bibliographically approved