新型超细搅拌磨机的流场数值模拟分析  

Numerical simulation and analysis on flow field of a new-type ultrafine stirred mill

作　　者：周俊杰[1] 董涛[1] 

机构地区：[1]郑州大学化工与能源学院,河南郑州450001

出　　处：《矿山机械》2015年第7期69-74,共6页Mining & Processing Equipment

基　　金：国家自然科学基金项目(5127613)

摘　　要：采用三维建模软件建立新型超细搅拌磨机的流场模型,并用FLUENT对新型超细搅拌磨机进行数值模拟,得出了流场速度、剪切率和黏性能量耗散率的分布情况。拟合分析了黏性能量耗散率与转速之间的关系,并分析了不同截面黏性能量耗散率的变化规律,得出正多边形筒体有助于增大黏性能量耗散率的结论。研究结果可为新型超细搅拌磨机的设计和优化提供理论依据。A 3D modeling software was applied to establish the model of the flow field in a new-type ultrafine stirred mill. In addition, FLUENT was used to conduct numerical simulation on the mill, and distribution of the velocity, shear rate and viscous energy dissipation ratio of the flow field was obtained. The relationship of the viscous energy dissipation ratio and the velocity was fitted and analyzed, and variation laws of the viscous energy dissipation ratio on various sections were analyzed, finally it was concluded that regular polygon cylinder was contributive for increasing the viscous energy dissipation ratio. The study results offered theoretical reference for design and optimization of new-type ultrafine stirred mills.

关 键 词：超细搅拌磨机 流场 数值模拟 黏性能量耗散率 

分 类 号：TD453[矿业工程—矿山机电]