摘要
介绍热线风速仪在发动机排气管内二维周期性非定常流场测试中的应用。对热线探头标定前的预处理、实测状态与标定状态差异引起误差的修正和流动方向的判别等测试中一些值得注意的问题和相应的处理方法进行了研究。
In this paper,application of a hotwire anemometer to the measurements of unsteady periodic flows in the exhaust manifold model of the engine is introduced.Techniques during velocity measurements such as pretreatment before calibrating hotwire,correction of error between calibrated circumstance and measured one,and differentiation of flow direction are discussed.
出处
《流体力学实验与测量》
CSCD
1998年第2期80-83,共4页
Experiments and Measurements in Fluid Mechanics
关键词
热线风速仪
非定常流
流速测量
二维
周期性
hotwire anemometer
unsteady flow
flow direction differentiation
velocity measurement
