Experiment and numerical simulation of two-phase flow in oxygen enriched side-blown furnace

Taking an oxygen enriched side-blown furnace as the prototype, a hydraulic model was established according to the similarity principle. The influence of three factors on the gas-liquid two-phase flow was analyzed, i.e. the airflow speed, the submerged depth and the downward angle of the nozzle. A numerical simulation of the hydraulic model was carried out trying to find the suitable turbulence model which can describe the side-blown two-phase flow correctly by comparing the simulation results with the experimental data. The experiment shows that the airflow speed has a great influence on the flow of the water. The submerged depth of the nozzle has a relatively smaller influence on the penetration depth and the surface fluctuation height in the liquid phase. When the nozzle is at a downward angle of 15 degrees, the penetration depth and the surface fluctuation height are reduced. It is concluded that the numerical results with the realizable k-epsilon turbulence model are the closest to the experiment for the penetration depth, the surface fluctuation height and the bubble scale.