Experiments and CFD predictions of solid particle distribution in a vessel agitated with four pitched blade turbines
Experiments and CFD predictions of solid particle distribution in a vessel agitated with four pitched blade turbines
复制标题
DOI：
10.1205/02638760152721253
复制
发表时间：
2001-11
影响因子：
3.9
通讯作者：
G. Montante;G. Micale;F. Magelli;A. Brucato
中科院分区：
文献类型：
--
作者：
G. Montante;G. Micale;F. Magelli;A. Brucato
采用实验测量和CFD模拟相结合的方法，研究了4个45°斜叶涡轮（PBT）搅拌的大展弦比折流板槽内固体颗粒的分布。考虑玻璃珠在水中和中等粘度液体中的稀释悬浮液。轴向颗粒浓度分布的测量是通过光衰减技术进行的。采用滑动网格法结合欧拉-欧拉双流体模型和“均相”两相k-ε湍流模型对固液悬浮体系进行了完全预测模拟。模拟的颗粒轴向浓度分布与实验数据进行了比较，发现良好的协议。
The distribution of solid particles in a high aspect-ratio baffled tank agitated with four 45° pitched blade turbines (PBT) was investigated using both experimental measurements and CFD simulations. Dilute suspensions of glass beads in water and moderately viscous liquids were considered. The measurement of axial particle concentration profiles was conducted by means of a light attenuation technique. Fully predictive simulations of solid-liquid suspensions were performed using a Sliding-Grid approach coupled with the Eulerian-Eulerian Two Fluid Model and the ‘homogeneous’ two-phase k-ɛ turbulence model. The simulated particle axial concentration profiles were compared with the experimental data and good agreement was found.