摘要
粘滞系数是表征流体性质的重要物理量,目前的教材中对气体的粘滞系数涉及甚少。该文设计出用烧瓶内的气体沿水平细圆管排气的实验装置,取材方便,操作简便,弥补了当前大学物理实验中的一个空白,对水平细圆管中气体动态特性作了理论模拟,推导出了气体粘滞系数的理论公式,并用该实验装置计算出了CO2的粘滞系数,表明了该方法具有较高的测量精度。
The viscosity coefficient is an important physical quantity to characterize the properties of fluids.At present,theviscosity coefficient of gas is rarely involved in the textbooks.In this paper,an experimental device for exhaust gas from flask along a horizontal fine circular pipe is designed,which is convenient to use and easy to operate.It makes up a blank in the current university physics experiment.The dynamic characteristics of gas in a horizontal fine circular tube are simulated theoretically,and the theoretical formula of the gas viscosity coefficient is derived.The viscosity coefficient of CO2 is calculated by the experimental device shows that the method has a higher measuring accuracy.
作者
谢谦
XIE Qian(Electronic Information and Electrical Engineering College,Shangluo University,Shangluo 726000,China)
出处
《自动化与仪表》
2021年第10期74-77,共4页
Automation & Instrumentation
基金
商洛学院横向科研项目(20HKY174)
大学生创新创业训练计划项目(S201911396063)。
关键词
气体粘滞系数
测定
水平细圆管
实验装置
动态特性
gas viscosity coefficient
measurement
horizontal fine round tube
experimental equipment
dynamic characteristics
