中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 30 No. 1 January 2020 |
（1. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
2. Changsha Design and Research Institute of Nonferrous Metallurgy, Changsha 410001, China;
3. School of Energy Science and Engineering, Central South University, Changsha 410083, China）
Abstract: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°, the penetration depth and the surface fluctuation height are reduced. It is concluded that the numerical results with the realizable k-ε turbulence model are the closest to the experiment for the penetration depth, the surface fluctuation height and the bubble scale.
Key words: side-blown furnace; hydraulic model; numerical simulation; turbulence model
