Metallurgy, Vol. 48 No. 4, 2009.
Original scientific paper
Mathematical identification of homogenisation processes in argon stirred ladle
K. Michalek
; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
J. Morávka
; Material & Metallurgical Research Ltd., Ostrava, Czech Republic
K. Gryc
; Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, Czech Republic
Abstract
Mathematical models processed results of experimental investigation obtained during ladle gas argon bubbling realized by stir elements situated in the ladle bottom. Exact theoretical description of processes occurring at argon bubbling into steel would be very complex and it would lead to a system of non-linear partial differential equations describing transfer of momentum, heat, components, and with excitation function in the form of equation of so called deterministic chaos (argon bubbling). On the basis of pouring ladle model diagram and concentrations courses, the simplified linear physically adequate model was proposed, which described behavior of steel concentration in pouring ladle during its bubbling. The analysed process was understood in the form of a cybernetic model.
Keywords
steel; ladle; gas argon bubbling; stir elements; physical modeling; mathematical identification
Hrčak ID:
38684
URI
Publication date:
1.10.2009.
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