【摘要】 混合式飞艇是同时借助浮力和气动升力飞行的一种新型航空飞行器,其外形布局方式与传统的飞艇有明显的区别。为了了解混合式飞艇囊体布局方式对飞艇气动特性的影响,分别建立常规单囊体飞艇、双囊体飞艇和三囊体飞艇的几何模型和气动模型,从攻角变化和速度变化两方面对三类囊体布局方式的气动特性进行了对比分析。计算结果表明:在相同体积的情况下,混合式飞艇的气动特性要优于常规单囊体飞艇,并且在一定范围内,混合式飞艇的体积越大、飞行速度越小,则其气动特性越好。研究结果可为我国混合式飞艇的发展及研制提供有益的参考。更多还原

【Abstract】 Hybrid airship is a new kind of air vehicle which uses a combination of helium and aerodynamic shape for lift,and its novel layout of airship hull is quite different from the conventional ellipsoidal airship. In order to realize the influence of the layout of the hybrid airship hull in the aerodynamic performance of the whole airship,the geometric models and aerodynamic models of three kinds of airships were established,and all of them were compared and analyzed with different angle and velocity. The calculation results show that: in the case of same volume,the aerodynamic performance of the hybrid airship is better than the conventional ellipsoidal airship,and in a certain range for hybrid airship,larger in volume and slower in velocity,better in aerodynamic performance. The study results can be of certain references to the development of hybrid airship.更多还原