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1.引言 飞行器的表面摩擦阻力约占总阻力的一半,无论从节能还是从提高飞行速度考虑,减小表面摩擦阻力都很重要。通常飞行器上大部分区域为湍流流动,所以设法减小湍流阻力更为人们关注。美国NASA探讨了十种不同减阻方案,其中壁面槽纹法已可实际应用,但减阻仅为4％。此外,平片控制器被认为较大发展前途,瑞典科学家曾将平片控制器安装在飞机上进行测量,获得了纯减阻收益。但由于流功的复杂性,其减阻
1. INTRODUCTION The surface frictional resistance of an aircraft accounts for about half of the total resistance. It is important to reduce the surface frictional resistance in terms of saving energy and increasing the flying speed. In most aircraft, turbulent flow usually occurs in most areas of the aircraft, so it is more interesting to try to reduce the turbulence resistance. NASA of the United States explores ten different drag reduction schemes, of which the wall groove method has been put into practical use, but the drag reduction is only 4%. In addition, the flat-panel controller is considered a great development, Swedish scientists have flat-panel controller installed on the plane for measurement, access to pure drag reduction benefits. However, due to the complexity of the merits, drag reduction