摘要：针对O-Sepa选粉机转子底部的不同结构进行分析和数值建模,采用FLUENT软件对其进行计算流体动力学的分析,探讨底部结构对选粉机流场特性的影响,分别对4种不同底部结构的O-Sepa选粉机模型进行相关分析和计算流体动力学的模拟仿真。结果表明:不同底部结构其底盘周围的流场也不同,对环形区域的流场也有一定的影响。

关键词： 选粉机;转子;流场;数值模拟

Abstract： The structure of an O -Sepa classifier was analyzed and the numerical value model was built on its rotor cage bottom plates. FLUENT software was applied in the study. The effect of structural variations of bottom plate on flow field characteristics was investigated. Four models of O -Sepa classifier with different type bottom plate were analyzed and simulated by computational fluid dynamics （CFD）. It was found that the different bottom plates had different flow field characteristics around the bottom plate. The structural variations of the bottom plate had some effects on the flow field in the annular region too. 

Keywords： classifier； rotor； flow field； numerical simulation