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飞行器在高亚音速飞行时,就会产生了局部激波,并且激波阻力随着飞行马赫数的增加而快速增加,从而极大地降低了飞机的升阻比K,对于超音速飞行的飞机更影响更大,因此,要使得飞行器具备良好的超音速巡航气动特性,其中的一个关键的设计要点就是降低飞行器超音速飞行时的激波阻力。本文经过对飞行器设计理论的研究,以及参考了国外的超音速巡航的客机,在此基础上探索新型超音速巡航运输机的气动布局方案,并通过软件进行数值模拟,通过算例验证表明本设计思路具有一定的可行性。
When the aircraft is flying at high subsonic speeds, local shocks are generated and the shock resistance rapidly increases with the increase of flight Mach number, thus greatly reducing the aircraft lift-drag ratio K, and for supersonic aircraft more A greater impact, therefore, to make the aircraft has a good supersonic cruise aerodynamic characteristics, one of the key design points is to reduce the aircraft during supersonic flight shock resistance. Based on the research of aircraft design theory and reference to the foreign supersonic cruise passenger aircraft, this paper explores the aerodynamic layout scheme of the new supersonic cruise transport aircraft and carries out numerical simulation by software. The example shows that this design idea With a certain degree of feasibility.