利用流体仿真研究文丘里流量计瞬变流动模型  

Exploration of Model of Venturi Flowmeter under Transient Flow by Fluid Simulation

作　　者：张永胜[1] 张毅治[1] 王鹏[1] ZHANG Yongsheng;ZHANG Yizhi;WANG Peng(Changcheng Institute of Metrology & Measurement,Beijing 100095,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2019年第1期10-13,共4页Metrology & Measurement Technology

摘　　要：为研究文丘里流量计在瞬变流动流下的数学模型,利用FLUENT软件对文丘里流量计在阶跃流动下的流场进行仿真计算,获得不同阶跃流动状态下流量与差压的离散值,利用平面拟合方法获得微分方程各项系数,进而确定流量计在瞬变流动下的数学模型。In order to study the mathematical model of Venturi flowmeter under transient flow, the flow field of Venturi flowmeter under step flow was simulated by FLUENT software. The discrete values of flow and differential pressure under different step flow conditions were obtained. The coefficients of differential equation were obtained by plane fitting method, and then the mathematical model of Venturi flowmeter under transient flow was determined.

关 键 词：阶跃流量 文丘里流量计 数学模型 

分 类 号：TB9[一般工业技术—计量学]