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在西北工业大学NF-3低速风洞进行了飞虫粘附翼型对翼型气动性能影响的风洞实验研究。结果表明:模型表面粘附的飞虫数量累计到一定程度时,将会导致翼型表面50%区域以上的面积发生分离,引起翼型失速,并且实验前模型表面的飞虫数量会改变翼型的失速迎角,因此实验前必须将模型擦拭干净。鉴于飞虫粘着数量的不确定性,对于翼型在复杂环境下使用时其气动性能的变化需要加以关注。
Wind tunnel experiments on the aerodynamic performance of airfoil with airfoil adhesion airfoils were performed at Northwestern Polytechnic University at NF-3 low speed wind tunnel. The results show that the cumulative number of flying insects adhering to the surface of the model to a certain extent will cause the area above 50% of the airfoil surface to separate, causing the airfoil to stall and the number of flying insects on the surface of the model before the experiment will change the airfoil Of the stalling angle of attack, so before the experiment model must be wiped clean. Due to the uncertainty of flying insects, the aerodynamic performance changes of airfoils when using in complicated environment need to be paid attention to.