在低速风洞中红外热图诊断技术的实验研究

An Application with Infrared Imaging Technique in the Low-speed Flow Investigation

文章介绍了 NF- 3风洞应用红外热图技术和热丝加热方法实施的一项综合研究结果。该项研究对等弦长直机翼和无人机机翼进行了附面层流态诊断 ,分析出不同攻角、不同风速(雷诺数 )下机翼表面的层流区、紊流区及转捩线位置。结果表明 ,在低速风洞中 ,用红外热像仪进行实验模型的附面层状态的诊断 ,是一种简便、快捷、可信的方法。

The report introduce some resualts of reseach with infrared imaging technigue in NF-3 wind-tunnel.The testing results show that t he method is simple,fast and believable to diagnose the model boundary layer flo w state by using infrared imaging technigue in low-speed wind-tunnel testing.