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笔者对75°/60°双三角翼模型进行了水洞流态观测实验、低速风洞测压实验、空间流场测量实验,研究了双三角翼外翼前缘钝度对气动特性影响,包括对涡态的影响。这里发表的是第一期实验的初步结果。结果表明,外翼前缘钝化使内翼涡涡核推迟破裂,外翼前缘钝化主要影响双三角翼前缘折点后的后半翼上表面的C_p分布,特别是在涡发生破裂后,其影响较大。
In this paper, the flow field observation experiment, the low pressure wind tunnel pressure measurement experiment and the space flow field measurement experiment are carried out on the 75 ° / 60 ° double delta wing model. The influence of the obliquity of the leading edge of the outer wing of the double delta wing on the aerodynamic characteristics is studied, including Effect on the vortex. Here is the initial result of the first experiment. The results show that the outer wing leading edge deactivation delayed the vortex core of the inner wing, and the leading edge passivation of the outer wing mainly affects the C_p distribution of the upper half of the rear half wing after the turning point of the double delta wing, especially when the vortex ruptures After its greater impact.