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| 同轴圆筒旋转粘度计测量误差的分析与修正 | |
| 引用本文： | 肖文涛,张国忠,刘坤,刘京,王健.同轴圆筒旋转粘度计测量误差的分析与修正[J].现代科学仪器,2012(2):114-118. |
| 作者姓名： | 肖文涛 张国忠 刘坤 刘京 王健 |
| 作者单位： | 1. 中国石油大学储运与建筑工程学院,山东青岛,266555 2. 中石油煤层气有限责任公司吕梁分公司,山西吕梁,033000 3. 陕西延长石油集团管道运输公司输油五处,陕西延长,710000 |
| 摘 要： | 在使用同轴圆筒旋转粘度计进行实际测量时,由于实验条件与假定理想条件不符会产生测量误差。本文重点分析了Physica MCR301同轴圆筒旋转粘度计中牛顿流体、幂律流体、屈服假塑性流体及递减硬化固体材料的剪切速率、剪切应变和剪切应力的分布规律,以及由流体本构方程导致的稳态测量误差和由仪器测量系统本身惯性引入的瞬态测量误差。结合实验对稳态测量误差进行迭代逼近法修正,对瞬态测量误差由实测剪应力减去系统惯性力进行修正,这对测量非牛顿流体的流变性有重要意义。 |
| 关 键 词： | 同轴旋转粘度计 非牛顿流体 流变性 惯性误差 胶凝原油 启动 |
Analysis and Correction for Measurement Errors of Coaxial Cylinder Viscometers |
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| Xiao Wentao,Zhang Guozhong,Liu Kun,Liu Jing,Wang Jian.Analysis and Correction for Measurement Errors of Coaxial Cylinder Viscometers[J].Modern Scientific Instruments,2012(2):114-118. | |
| Authors: | Xiao Wentao Zhang Guozhong Liu Kun Liu Jing Wang Jian |
| Affiliation: | 1College of Pipeline and Civil Engineering,China University of Petroleum,Qingdao 266555,China;2Petrochina Coalbed Methane Company Limited,Lvliang 033000,China;3Shanxi Yangchang Petroleum group Pipeline Transportation Company,Yanchang 710000,China) |
| Abstract: | When using coaxial cylinder viscometer,measure error was caused by the inconsistency between experiment condition and ideal condition.This paper analyzes the shear rate,shear strain,shear stress distribution law of Newtonian liquid,Power-law fluid,Yield pseudoplastic fluid and reduced hardening solid materials in Physica MCR301 coaxial cylinder viscometer.It also analyzes steady-state measure error caused by constitutive equation of fluid and simultaneous measure error introduced by the inertia of instrument measuring system.The former can be modified by iteration and approximation,the latter is modified by subtracting inertial force from shear stress.It is important for measuring the rheology of Non-Newtonian liquid. |
| Keywords: | Coaxial cylinder viscometer Non-Newtonian liquid Rheology Inertia error Gelled waxy crude oil Start-up |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |