带螺旋桨飞机模型风洞实验洞壁干扰修正

带动力实验进行洞壁干扰修正时，必须考虑螺旋桨滑流的影响。运用等效动压法和壁压信息法对运八飞机带螺旋桨模型风洞实验数据进行洞壁干扰修正，分析洞壁对带螺旋桨飞机模型试验数据的影响并对不同修正方法进行了比较。两种修正方法的修正结果基本一致，壁压信息法能实际反映洞壁干扰影响，但壁压信息法需要进行准确的壁压测量，增加实验工作量；等效动压法是以经典的洞壁干扰修正公式为基础，考虑了螺旋桨滑流的影响，而且带螺旋桨飞机模型实验的攻角一般在中等攻角以下，不会出现像大攻角那样的分离特性，因此这种方法有较好实用性。

Wall Interference Correction Method for Wind-tunnel[1〗Experiments of Aircraft Model with Propeller

The effect of propeller induced slipstream to the experiment data must be corrected.In this paper,the wall correction method of equivalent kinetic pressure and wall pressure signature correction method are used to correct the wall interference from wind tunnel experiment of scaled Y8 model with propellers.The authors analyse the effect of the wall to the experiment data.And the diference of the different correction methods for model with propellers is also analyzed.The results of the two wall correction methods are similar on the whole.Wall pressure signature correction method responses the effect of the wall interference actually.But it needs accurate measuring pressure and increases lots of work.The wall correction method of equivalent kinetic pressure which is based on the classical wall correction method of equivalent kinetic pressure is more simple and applicable.