摘要
本文采用水洞流谱观测方法,研究了带有涡襟翼的翼—身组合体前缘分离涡及涡系干扰的流动特性,并与普通翼—身组合体情况进行比较;分析了涡襟翼的涡流运动特点及其升阻比增大的机理;讨论了翼—身组合体涡系干扰的主要反映及对涡破碎特性的影响;并对非对称体涡出现的条件以及分离旋涡在稳定发展过程中的抗干扰能力提出了看法.
Flow visualisation methods have been used in a water tunnel to study the leading-edge vortices of wing-body combination with leading-edge vortex flaps and the interaction characteristics of vortex system.The characteristics has been compared with those of vortex system generated by ordinary wing-body combination.The characteristics of vortex flow movement induced by vortex flaps and the principle of increasing lift-drag ratio of the wing are analyzed.The main expressions of vortex interaction and its effects on vortex-burst are discussed.The conditions under which the body vortex patterns become asymmetry and the ability for separated vortices to resist disturbance in steady developing process are introduced.
出处
《实验力学》
CSCD
北大核心
1993年第1期70-75,共6页
Journal of Experimental Mechanics
