A new semi-empirical spectrum model for complex steady shear viscosity of complex fluids

查看全文 作　　者：Shuxin [1]Huang;Chuanjing [1,3]Lu;Yurun [2]Fan 机构地区：[1]Department of Engineering Mechanics,Shanghai Jiaotong University, 200240 Shanghai, China;[2]State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University, 310027 Hangzhou, China;[3]State Key Laboratory of Ocean Engineering,Shanghai Jiaotong University, 200240 Shanghai, China 出　　处：《Acta Mechanica Sinica》索引2009年第25卷第6期,共5页 基　　金：supported by the Natural Science Foundation of Shanghai (07zrl4047);Shanghai Leading Academic Discipline Project (B206);the National Natural Science Foundation of China(50675202). 摘　　要：A semi-empirical spectrum model is proposed todescribe the experimental data of the steady shear propertiesof a Shengli waxy crude oil near its gel point, where sophisticatedstructural effects become apparent due to the existenceof waxy crystals in the crude oil. The model, consisting of atime spectrum, can well fit the steady shear viscosities of thewaxy crude oil over the whole experimental shear rate regionfrom 10^-4 to 10~2 s^-1.Two other experiments on complex fluidsreported recently in the literature are also well describedby this model demonstrating the applicability and accuracyof the model. 关 键 词：半经验模型 原油稳定 剪切粘度 复杂流体 频谱 实验数据 剪切性质 结构效应