An experimental and numerical study of fluid flow in AOD Nozzles
2002 (English)In: Iron & steelmaker, ISSN 0275-8687, Vol. 29, no 2, 51-57 p.Article in journal (Refereed) Published
A mathematical model of a nozzle used in AOD converters was developed in a previous study. In the work covered in this article, an attempt was made to verify velocity predictions from the nozzle model through a comparison of measurements. Experiments were performed at AGA AB's laboratories using a laser doppler anemometer (LDA) to measure axial velocities at the outlet of a nozzle having the same dimensions as nozzles used in industrial AOD converters. The model predictions agreed well with measured data. An attempt was also made to compare turbulent kinetic energy predictions from the k-ε turbulence model with turbulence predictions calculated using an analytical expression that uses measured velocity fluctuation values. The positive results from this comparison indicate that the model can produce fairly reliable predictions of turbulence at the nozzle outlet. The results from this study are promising regarding use of the nozzle model to calculate boundary condition input values pertaining to the nozzle inlet that will be required for an AOD converter model currently being developed.
Place, publisher, year, edition, pages
2002. Vol. 29, no 2, 51-57 p.
Theoretical study, Oxygen converter, Oxygen steel plant, Steel, Flow(fluid), Mathematical model, Modeling, Numerical simulation
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-24560OAI: oai:DiVA.org:kth-24560DiVA: diva2:351836
QC 201009162010-09-162010-09-162010-09-16Bibliographically approved