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本文通过实验和理论分析,集中研究小展弦细长翼的翼身组合体的大迎角横向气动特性。研究表明,在大迎角定常非对称涡的范围内,由于翼身组合段对后柱体的边界层分离起遮蔽作用,大大削弱了非对称头涡在后柱体上诱导的侧力。实验证实,平置式翼身组合体的侧力要比单独体的侧力大;带两对弹翼的一般翼身组合体,它的侧力主要由前体以及弹翼组成,如果前体涡在弹翼上诱导的侧力与前体的侧力同向,则该侧力要比平置式布局“ ○ ”的侧力大得多。
In this paper, through experimental and theoretical analysis, we will focus on the high-angle-of-attack aerodynamic characteristics of the wing-body combination of the slender winged wing. The results show that the side force induced by the asymmetric head vortex is greatly attenuated due to the shadowing of the boundary layer of the rear cylinder due to the combination of the wing body segments within the range of steady asymmetric vortices at high angles of attack. The experimental results show that the lateral force of the flat wing body assembly is greater than the lateral force of the single body. The general wing body assembly with two pairs of wing flaps mainly consists of the precursor and the wing. If the precursor vortex The side force induced on the wing is in the same direction as the side force of the precursor, which is much greater than the side force of the flat layout “”.