Abstract
The effect of power and radiation time on inclusion removal was studied in the ladle refining cold model by using organic particles to imitate inclusion. We simulate ultrasonic agitation in the ladle refining model by programming user-defined functions with the FLUENT computational fluid dynamics software. Results show that a large negative-pressure zone is observed in the liquid of the dynamic boundary during the first time step. During the second time step, the liquid at the bottom of the model has a large positive pressure area. Inclusions in the molten steel should be removed through pressure change to improve the purification effects of liquid steel. As the power increases, the absolute value of negative pressure increases.
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