化工进展2016，Vol.35Issue(5)：1283-1288,6.DOI:10.16085/j.issn.1000-6613.2016.05.003
聚合物搅拌脱挥设备及其CFD模拟研究进展
Progress on agitated apparatus for polymer devolatilization and its CFD simulation
摘要
Abstract
The progress on new types of agitated apparatus for polymer devolatilization was reviewed, while the key issues on the development of new devolatilization devices were analyzed. The characteristics of flow field,mixing,film forming and surface renewal are the key factors to strengthen the mass transfer process. Developing highly efficient and self-cleaning devices for polymer devolatilization is the major prospect in this field. The applications of computational fluid mechanics (CFD) simulations on transfer process in such devices were also discussed. Finite element method combined with mesh superposition technique(MST) and finite volume method combined with dynamic mesh technique have been used to deal with problems such as complex geometric blades and fins,twin-shaft rotating motion,tiny gaps within engaged areas and so on. Gas-liquid interface can be precisely tracked by means of volume of fluid(VOF) multiphase flow model. The film forming and surface renewal characteristics can be investigated,which contributes to learn more about the mass transfer mechanism. CFD numerical simulation offers a new idea for designing highly efficient devices for polymer devolatilization.关键词
脱挥/自清洁/数值模拟/传质/搅拌Key words
devolatilization/self-cleaning/numerical simulation/mass transfer/agitation分类
化学化工引用本文复制引用
成文凯,王嘉骏,顾雪萍,冯连芳..聚合物搅拌脱挥设备及其CFD模拟研究进展[J].化工进展,2016,35(5):1283-1288,6.基金项目
国家自然科学基金（21276222）及化学工程联合国家重点实验室开放课题（SKL-ChE-13D01）项目。 （）
