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文章首先基于雷诺相似理论,在地面螺旋桨实验平台上开展ARA-D翼型螺旋桨微秒脉冲等离子体增效三维实验,结果表明,等离子体对螺旋桨拉力增效效果随着脉冲频率增加而减弱,而螺旋桨转矩受等离子体影响随拉力增效效果增加而减弱,拉力、效率最大增幅分别达到10.79%、11.56%。而后基于雷诺相似理论及叶素理论,在低湍流度风洞开展S1223翼型螺旋桨叶素微秒脉冲等离子体增效二维实验,结果表明等离子体激励提高了翼型各叶素拉力,其中根部与尖部叶素表现尤为明显。二维实验结果可为三维实验激励器展向排布方案提供理论依据。2种实验结果均表明,等离子体射流可以有效抑制翼型表面流动分离。
Firstly, based on the Reynolds-new theory, the three-dimensional experiment of microsecond pulsed plasma augmentation with ARA-D airfoil propeller was carried out on the ground propeller experimental platform. The results show that the synergistic effect of plasma on propeller pulsation weakens as the pulse frequency increases, The influence of plasma on the propeller torque is weakened with the increase of tension synergistic effect, and the maximum increase of tension and efficiency reaches 10.79% and 11.56% respectively. Based on the Reynolds similarity theory and the elemental theory, two-dimensional pulse plasma enhanced synergistic two-dimensional experiments of S1223 airfoil propeller blades were carried out in a low-turbulence wind tunnel. The results showed that the plasma excitation enhanced the airfoil tension, and the root and tip Sebaceous element is particularly evident. Two-dimensional experimental results can provide a theoretical basis for the three-dimensional experimental exciter deployment arrangement. Both experimental results show that the plasma jet can effectively suppress the airfoil surface flow separation.