An Experimental and Numerical Study of theFilling of a Steel Sampler
(English)Manuscript (preprint) (Other academic)
During the steelmaking process, it is important to understand the origin, types and nature ofinclusions. After an initial period of heating, mixing and chemical reactions in an electric arcfurnace and some crucial processes in a ladle, taking liquid steel samples in the ladle is a criticalstep in monitoring the inclusion population. This paper presents a study of filling of a steelsampler process as well as the primary inclusion dispersions inside a steel sample. To betterunderstand the influence of filling on the inclusion populations, physical modelings of waterfilling in a rectangular-shaped vessel have been carried out to study flow fields. The flow fieldswere obtained by a Particle Image Velocimetry. Thereafter, simulation of water samplers havebeen done to mathematically study the flow fields. The physical modeling data were used forverification of the model predictions, including the selection of the most appropriate turbulencemodel. Finally, simulations of the filling of liquid steel were carried out for a rectangular-shapedsampler, which is used in the laboratory.
steel sampler, filling, flow pattern, vortex, PIV, turbulent flow, Wilcox k-ω model, inclusions
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-24420ISRN: KTH/MSE--10/35--SE+APRMETU/ARTOAI: oai:DiVA.org:kth-24420DiVA: diva2:349669
QC 201009082010-09-082010-09-082010-09-08Bibliographically approved