Flow characteristic prediction for liquid-liquid system in a stirred tank based on RNG k-ε model

The RNG k-e model was adopted to calculate liquid–liquid turbulent flow in stirred tanks based on Eulerian–Eulerian model. The radial and tangential velocities of numerical calculation were compared with that of reported experiment. The results show that the calculation results are in satisfactory agreement with the experimental data. The complex liquid-liquid flow characteristics in the stirred tank were successfully predicted by the RNG k-e model which means that the established calculation model can be an alternative method with inexpensive computing costs and high computational accuracy.