声激励增升机理研究

提供了内部声激励增升机理的试验及数值研究结果，风洞试验就二元后台阶模型、平板、ＮＡＣＡ００１２翼型分别在两座不同的低速风洞中完成，试验和数值研究表明内部声激励能有效控制模型表面气流分离，有明显的增升效果，并从试验和数值计算两方面对声激励增升机理进行了较深入的探讨。

INVESTIGATION ON THE MECHANISM OF ACOUSTIC EXCITATION ON ENHANCING LIFT

This paper presents the results of experimental and numerical investigation on the mechanism of internal acoustic excitation on enhancing lift.Experiments on a two dimensional backward facing step model,a flat and a slotted NACA 0012 airfoil model were conducted in two low speed wind tunnels respectively.Experimental and numerical results show that significant lift enhancement is obtained by controlling flow on the upper surface of model.The further discussion of mechanism of enhancing lift is finished by experimental and numerical methods.