中文摘要：

分别建立相向旋转和同向旋转转子密炼机混炼流场的物理模型、数学模型和有限元模型,并用计算流体动力学软件Fluent对三维等温流场进行模拟。通过对模拟结果的后处理和对粒子轨迹的统计,对相向和同向旋转转子密炼机的分散混合和分布混合性能进行了对比研究和定量描述。相向转子密炼机分散混合性能好;相向和同向转子密炼机最终混合分布能力相近。

英文摘要：

In this study,the physics,mathematics and finite element models for mixing field of counter–rotating twin rotor and co–rotating twin rotor mixers were established,and three–dimensional isothermal flow field simulation of mixer was performed by a computational fluid dynamics software Fluent. The mixing performance of the counter-rotating and co-rotating mixers, including dispersive mixing property and distributive mixing property were quantitatively studied and compared through analysis of the simulation results and statistical results of the trajectories of the large amount of particles. It was indicated that the dispersive mixing property in counter-rotating rotor mixer was better,and the distributive mixing properties from both counter-rotating rotor and co-rotating rotor mixers were similar.