an:05980921
Zbl 1227.80047
Milosevic, Hranislav; Stevovic, Svetlana; Petkovic, Dojcin
Numerical simulation of interaction during the top blow in a steel-making converter
EN
Int. J. Heat Mass Transfer 54, No. 19-20, 4275-4279 (2011).
00282599
2011
j
80A25 80A32 76D05 76F60 76J20 76H05 76T10 35Q30
numerical modeling; interaction; turbulent flow; Navier-Stokes; flow structure
Summary: The numerical modeling of interaction between oxygen high-pressure jets and a liquid -- metal surface in a steel-making converter, where, under the force action of the jets, a cavern with a hydrodynamically unstable surface forms in the metal bulk, is studied. A simplified scheme of chemical reactions and mechanisms of metal-drop dispersing from the interface between the phases is proposed. This scheme permits an adequate description of the hydrodynamic flow pattern in the cavern. The modeling of a two-phase turbulent flow in the cavern is considered within the framework of the continuum model based on the averaged Navier -- Stokes equations. To close the equations, a modified \(k - \varepsilon \) turbulence model is used, which takes into account the presence of the second phase. The flow structure in the cavern is studied. Practical recommendations for increasing the efficiency of the carbon-monoxide afterburning process in the cavern are given.