Laboratory scale unbaffled tanks provided with a top cover and a baffled tank both stirred by a Rushton turbine were simulated by carrying out RANS simulations. Three different turbulence models were adopted (k-$\omega$ SST, k-$\epsilon$ and the SSG Reynolds stress model) to predict the flow field and the relevant performance parameters (power and pumping numbers) of the tank operated from early to fully turbulent conditions. CFD results were compared with literature experimental data and DNS simulation results to validate and properly compare the models. In the range of Reynolds numbers investigated, results showed that, for the unbaffled tank, the SSG model based on Reynolds stresses is a better choice at larger Re, while the k-$\omega$ SST model better reproduces the experiments at lower values. Conversely, no significant differences between the predictions of the three models were found in the baffled vessel.

通过进行RANS模拟，对配备有顶盖的实验室规模的无挡板槽和均由Rushton涡轮搅拌的挡板槽进行了模拟。采用了三种不同的湍流模型（k-$\omega$ SST，K-$\epsilon$和SSG雷诺应力模型）来预测从早期到完全湍流条件下运行的储罐的流场和相关性能参数（功率和抽水次数）。将CFD结果与文献实验数据和DNS模拟结果进行比较，以验证并正确比较模型。在研究的雷诺数范围内，结果表明，对于无挡板储罐，基于雷诺应力的SSG模型在较大Re时是更好的选择，而k-$\omega$SST模型可以更好地重现较低值的实验。相反，在带挡板的容器中，这三个模型的预测之间没有显着差异。