文献类型：会议论文

英文题名：Key Parameter Prediction and Validation for a Pilot-Scale Rotating-Disk Contactor by CFD-PBM Simulation

作者：Chen, Hang[1];Sun, Ze[1];Song, Xingfu[1];Yu, Jianguo[1]

机构：[1]E China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China

会议论文集：1st Energy System Modeling and Optimization Conference (ESMOC)

会议日期：DEC 09-11, 2013

会议地点：Durgapur, INDIA

语种：英文

外文关键词：Rotating disks - Drops - Two phase flow - Velocity measurement

摘要：Compared with traditional methods, computational fluid dynamicspopulation balance model (CFDPBM) simulations are much more efficient for the design of extractors. In this study, the CFDPBM framework was established for a pilot-scale rotating-disk contactor. The EulerEuler approach incorporated with the realizable k-epsilon model was used for the two-phase simulation. For droplet coalescence and breakage, predictive closures based on the model of Luo and Svendsen were employed for further verification. The species transport model was also solved to estimate axial mixing. The model was validated first by comparing the flow field with referenced particle image velocimetry data. Then the predicted key parameters of droplet diameter, dispersed-phase holdup, and Peclet number were compared with empirical correlations for a comprehensive validation. The results indicate that the predictive CFDPBM is suitable for the design of extraction columns. Its average deviations on the three parameters are 15.7%, 12.9%, and 15.2%, respectively. The model also successfully predicts the regular variations of the droplet diameter and holdup with the rising agitation rate, which contribute to the validation.