【摘要】 本文对模型周围的侧壁附面层抽吸,研究跨音速二元风洞的侧壁干扰。模型的展长大于风洞的宽度,其中央剖面有测压孔,在风洞实验段中可沿展向滑移,使测压剖面相对于风洞的对称平面的展向位置取不同的值。实验表明:在超临界情况,当对模型周围侧壁附面层进行抽吸时,气动力的展向均匀性改善,翼型上的激波向后移。更多还原

【Abstract】 This paper presents an investigation on the side wall effect in two -dimensional transonic wind tunnel with sidewall boundary layer suction around the model. The span of the airfoil medel used in the experiments is larger than the width of the test section. Therefore, the model can be shifted laterally and the streamwise pressure distribution for different spanwise section can be obtained. The est results shows that for supercritical flow, the application of sidewall suction will result in an improvement on spanwise uniformity of aerodynamics and a downstream movement of the shock wave.更多还原