Study on mixing characteristics in reactor

Zhang Yun-dian, Dong Chang-shuai, Chu Rui, Chen Jian

                                                (School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)

Abstract: Aiming at the problem of stirring effect of a new agitator (three-layer propeller agitator) in reactor, the grid agitator was used as the comparative test object in the method of computational fluid dynamics. The two agitators was modeled in SolidWorks software, and then the built model was imported into Fluent software for flow field simulation analysis. The Tecplot and Excel software were used in data post processing. From the analysis result data, these were found that the flow field, the organic solution distribution cloud diagram and the volume fraction of the organic solution of the selected cross-section. From these data, the mixing effect of the new stirrer in the reactor was studied. The results indicate that the axial mixing flow field formed by the new type of agitator is more scientific and the stirring effect is better than grid agitator. In addition, the distribution of the organic solution of the new agitator is more uniform.
Key words: computational fluid dynamic; flow field; volume fraction; mixing