旋转粘度计间隙流及其对粘度测量的影响  

The Gap Flow of Rotating Viscometer and Its Effect on Viscosity Measurement

作　　者：金愿 朱绚华[1] 江鲲[1] Jin Yuan;Zhu Xuanhua;Jiang Kun

机构地区：[1]上海市计量测试技术研究院,上海201203

出　　处：《计量与测试技术》2018年第1期101-103,共3页Metrology & Measurement Technique

摘　　要：采用Fluent分析软件模拟了旋转粘度计在不同间隙比、转速下间隙流的流态,探讨了间隙流流态影响粘度测量的机理。旋转粘度计中内外转子间隙比、转速均会影响粘度测量的大小,实验表明选用不同转速时粘度测量偏差达1.5%。旋转粘度计在使用时应该保证间隙比、转速同校准时相同。We used Fluent analysis software to simulate the flow pattern of gap flow of rotation viscometer at different interstice ratios and rotation speeds.The mechanism of the influence of gap flow paUern on viscosity measurement was also discussed.The interstice ratios of internal and external rotors of rotation viscometer,and rotation speeds will affect the result of the viscosity measurement,the experiment shows that with the selection of different speeds viscosity measurement deviation can reach 1.5%.Thus rotation viscometer should be used with the adjusted same gap ratio and same rotation speed.

关 键 词：旋转粘度计 间隙流 流态 FLUENT 

分 类 号：TP933[自动化与计算机技术]