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工程力学  2013 

基于翼尖支撑和螺旋桨独立支撑的螺旋桨滑流影响实验研究

, PP. 288-293

Keywords: 螺旋桨,滑流,短舱,风洞实验,翼尖支撑,拉力系数

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Abstract:

螺旋桨滑流对飞机的升力系数、阻力系数、俯仰力矩系数有着非常重要的影响,该文通过风洞实验方法,探索螺旋桨滑流对飞机气动特性影响的规律。与目前国内常用的全机带动力实验不同,该文结合西北工业大学NF-3低速风洞的翼尖支撑测量系统和螺旋桨及短舱独立支撑机构开展研究,研究了桨叶角、前进比和拉力系数对螺旋桨滑流效果的影响。研究表明:螺旋桨滑流效果主要取决于其拉力系数,飞机升力系数随螺旋桨拉力系数的增大而增大,阻力系数和俯仰力矩系数随螺旋桨拉力系数的增大而减小。

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