Abstract
The paper focuses on the numerical investigation of the Al2O3 precipitation behaviour at the steel-slag phases interface. Several assumptions were made to simplify the process in order to prepare its description. A mathematical model of the steel-slag-precipitation system was introduced. The model base on the equation of motion, and takes into account forces balance of buoyancy force, added mass force, drag force and rebound force. Mentioned forces act in the same direction which is perpendicular with the steel-slag interface surface, but is positive or negative. The precipitation initial velocity can be calculated on the base of steel and inclusion density, liquid steel viscosity and particle radius. The numerical model based on the firstly prepared mathematical model was presented. Results of the computations show what is the precipitation radius size influence on particle movement and its assimilation to the slag.
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