含气率对润滑油黏度的影响  

Effect of Void Fraction on Viscosity of Lubricating Oil

作　　者：张泽斌 李永 陈荣尚 于润泽 ZHANG Zebin;LI Yong;CHEN Rongshang;YU Runze(School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China;Zhengzhou Foreign Language School,Zhengzhou 450001,China)

机构地区：[1]郑州大学机械工程学院,河南郑州450001 [2]郑州外国语学校,河南郑州450001

出　　处：《河南科技大学学报（自然科学版）》2019年第2期23-27,106,107,共7页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51575498)

摘　　要：为了研究润滑油黏度随含气率变化的特性,以汽轮机油和氮气作为试验材料制备气油两相流,分别采用称质量法和旋转黏度计测量不同通气流量下两相流的含气率和黏度,并对试验数据进行了回归分析,建立了两相流的黏度计算模型。试验结果表明:油温在30℃条件下,气油两相流的含气率随着通气流量的增大而增大,试验测量所得含气率最大值为2. 557%。气油两相流的黏度随着含气率的增加而增加。Turbine oil and Nitrogen gas were mixed to produce a gas-oil two-phase flow to study the effect on viscosity of the lubricating oil of the variation of the gas void fraction under different ventilation flow. The gas void fraction and dynamic viscosity of the two-phase flow were measured separately by means of weight variation and rotational viscometer. A numerical model was built to approximate the viscosity of the two-phase flow by regression analysis of experimental data. The results indicate that gas void fraction increases with the increasing flow rate of the gas at 30 ℃ of oil temperature. The maximum gas void fractions measured is 2. 557%. The viscosity of the two-phase flow increases with the increasing of gas void fraction.

关 键 词：含气率 气油两相流 黏度 回归分析 

分 类 号：TH117.2[机械工程—机械设计及理论]