【作者】 杨以刚； 周明珏； 李曰兵； 金伟娅；

【Author】 Yang Yigang;Zhou Mingjue;Li Yuebing;Jin Weiya;Institute of Process Equipment & Control Engineering,Zhejiang University of Technology;

【机构】 浙江工业大学化工过程机械研究所；

【摘要】 为了获得真空螺带干燥器内流场的特性,采用流体动力学数值模拟软件Fluent,在多重参考系坐标下,基于Navier-Stokes方程采用欧拉-欧拉多相流模型、标准k-ε模型对真空螺带干燥器内粉体颗粒流进行了数值分析。分析结果表明数值模拟所得颗粒运动状态与实验所测物料宏观运动特性基本吻合,对进一步分析其干燥性能具有重要意义。更多还原

【Abstract】 In order to investigate the internal flow field in vacuum helical ribbon dryer,computational fluid dynamics simulation is performed by Fluent.The distribution of particle in vacuum helical ribbon dryer is modeled.The Eulerian-Eulerian multiphase model,the standard K-turbulence model,and multiple reference frame are introduced to model the particle flow based on the Navier-Stokes equations.Then the motion state and distribution of particle are obtained.The results are compared with experiments and show that it is consistent with the macroscopic motion characteristics of the materials in the experiment,which is of great significance for further analysis of the drying performance of the dryer.更多还原