Development of a Quiet Aerofoil with Adaptive Porous Edges

在成功模仿自然界使用的流量控制之后，创新的新流量控制诞生了。猫头鹰一直是一个令人兴奋的研究课题，以减少翼型噪音。在这种情况下，它们的羽毛的多孔性（允许空气通过翅膀的质量）有助于抑制噪音[6，7]。如果能在不影响翼型气动性能的前提下有效地抑制噪声，将具有重要的工业意义。翼型多孔处理是一个很有前途的研究课题，但目前的研究仍存在许多空白，本博士论文旨在填补：气动性能和气动声学性能孔隙/渗透率的适应性翼型前缘和后缘的孔隙率

Following successful attempts to mimic flow controls employed by nature, innovative new flow controls were born. Owls have long been an exciting topic of research for reducing aerofoil noise. In this case, their feathers' porosity (the quality that allows air to pass resistively through the wings) helps in suppressing noise [6,7]. If this noise suppression could be harnessed without a detrimental effect to the aerodynamic performance of aerofoil, it would have significant industrial implications.Porous treatment on aerofoil is a promising research topic, but there are still many gaps in the current research which this PhD aims to fill:The Aerodynamic and Aero-acoustics PerformancesThe Adaptability of Porosity/PermeabilityPorosity at both the Leading and Trailing Edge of the aerofoil