Computational Fluid Dynamics (CFD) simulations of solid–liquid flows in stirred tanks are feasible with appropriate closure models. However, no systematic assessment of different models has appeared yet because of lacking validation data. The present study accumulates a “CFD-grade” database on solid–liquid two-phase flow experiments in a stirred tank (diameter = 90 mm), including single-phase flows for comparison. The velocity fields of the liquid and solid phases are measured with Particle Image Velocimetry and Particle Shadow Velocimetry, respectively. The experiments cover a range of density ratios, particle diameters, solid volume fractions and impeller rotation speeds. The mean and fluctuating liquid and solid velocities are obtained by time-averaging and angle-resolved averaging, as well as the time-averaged local solid fraction. The experimental data for the single-phase flows is compared with CFD simulations which show reasonably good predictions. A systematic assessment of CFD models for solid–liquid flows will appear as a sequel.

搅拌罐中固液流动的计算流体动力学 (CFD) 模拟在适当的封闭模型下是可行的。然而，由于缺乏验证数据，尚未出现对不同模型的系统评估。本研究积累了一个关于搅拌罐（直径 = 90 毫米）中固液两相流实验的“CFD 级”数据库，包括用于比较的单相流。液相和固相的速度场分别用粒子图像测速法和粒子阴影测速法测量。实验涵盖了一系列密度比、粒径、固体体积分数和叶轮转速。平均和波动的液体和固体速度是通过时间平均和角度分辨平均以及时间平均的局部固体分数获得的。将单相流的实验数据与 CFD 模拟进行比较，显示出相当好的预测。固-液流动的 CFD 模型的系统评估将作为续集出现。