流量测量所需管流条件的试验研究  

The investigation of pipe flow condition requirments for gas flow rate measurement

作　　者：徐翔[1] 张志军[1] 徐向东[1] 

机构地区：[1]清华大学热能工程系,北京100084

出　　处：《流体力学实验与测量》2003年第1期76-79,共4页Experiments and Measurements in Fluid Mechanics

基　　金：985基金资助项目(081202000)

摘　　要：速度法测量气体流量,其前提条件是被测面的管流为充分发展、对称分布的典型管流。通过90°弯头管流试验研究分析,得出弯头下游不同距离截面上的管流分布情况,为90°弯头下游选择典型管流的测量位置提供了可靠的依据。Gas flow rate measurment with velocity model is based on that pipe flow at measure section is typical flow.We experimented by measuring flow velocity on 90° bent pipe,the result shows the flow distribution at different distant downstream position of bent pipe.The result also provides the credible reference for the selection of measure section with typical flow.

关 键 词：试验研究 流量计 流速分布 流量系数 气体流量测量 

分 类 号：TK313[动力工程及工程热物理—热能工程]