Modeling of coefficient of contraction of differential pressure flowmeters

被引：5
|
作者：
Dayev, Zh. A. [1 ]
Kairakbaev, A. K. [1 ]
机构：
[1] Baishev Univ Aktobe, Aktobe, Kazakhstan
来源：
FLOW MEASUREMENT AND INSTRUMENTATION | 2019年 / 66卷
关键词：
Vena Contracta; Coefficient of contraction; Flowmeter; Differential pressure; Orifice plate;
D O I：
10.1016/j.flowmeasinst.2019.02.009
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The article provides a solution to the problem of contraction process modeling when measuring the flow of fluids and gases using differential pressure flowmeters. The article shows the feasibility of obtaining the coefficient of contraction from the mathematical model of the reduced/contracted flow of fluids or gases. An analytical expression is obtained for the coefficient of contraction, which agrees well with the results of the experiment. Analysis of this expression is performed and dependencies on the geometrical parameters of the pipeline and orifice plate are obtained.
引用
收藏
页码：128 / 131
页数：4
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