计量学报2024，Vol.45Issue(4)：540-545,6.DOI:10.3969/j.issn.1000-1158.2024.04.12
基于泊肃叶定律的未知气体粘滞系数测量
Measurement of Viscosity Coefficient of Unknown Gas Based on Poiseuille's Law
摘要
Abstract
To study and measure the viscosity coefficient of unknown gas,a simple measuring device based on capillary was built.According to Poiseuille's law,the relationship between gas volume flow and viscosity coefficient was established.With N2 as the calibration standard gas,the viscosity coefficients of H2,CO2 and synthetic air in the temperature range of 280～320 K and the pressure range of 169～376 kPa were calculated by measuring the volume flow.The reliability of this method is theoretically analyzed,and the results are compared with the viscosity coefficient in NIST database.The relative error rate of this method is in the range of[-1.109％,1.779％]when the differential pressure is in the range of 103～206 kPa.关键词
粘度计量:气体粘滞系数/泊肃叶定律/毛细管/体积流量Key words
viscosity measurement/gas viscosity coefficient/Poiseuille's law/capillary/volume flow分类
通用工业技术引用本文复制引用
汤博文,彭月祥,张宇,左爱斌..基于泊肃叶定律的未知气体粘滞系数测量[J].计量学报,2024,45(4):540-545,6.基金项目
国家自然科学基金(41727805) （41727805）
