空气动力学学报Issue(2)：178-182,5.DOI:10.7638/kqdlxxb-2015.0029
边条翼和近距鸭翼布局模型动态气动特性分析
Dynamic characteristics of hinged strake-wing and close-coupled wing-canard configuration fighter models
摘要
Abstract
The pitching oscillation with large amplitude dynamic test and free—to—roll test on two typical fighter configuration models of hinged strake—wing and close—coupled wing—canard are conducted in FL—24 wind tunnel of China Aerodynamic Research and Development Center (CARDC).An analysis of the dynamic aerodynamic characteristics of hinged strake—wing model and close—coupled wing—canard configuration is made at high angles of attack.The results show that the longitudinal dynamic characteristic of hinged strake—wing model is obviously better than that of the close—coupled wing—canard model.Especially,the pitching moment hysteresis effect of hinged strake—wing model is stronger.Meanwhile,the roll moment of canard wing model is large at the range of attack angles from 26°to 45°.It means that close—coupled wing—canard model is in—duced rock more easily.Finally free—to—roll experiment is carried on.The experiment results show the limit cycle rock phenomenon of the canard model appears in the angle of attack greater than 30°degrees,so the analysis conclusions of the longitudinal dynamic test have been validated.关键词
风洞试验/边条机翼/近距鸭翼/俯仰/非定常空气动力Key words
wind tunnel test/hinged strake-wing/close-coupled wing-canard/pitching/unsteady aerodynamic分类
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李其畅,赵忠良,杨海泳,李玉平,马上,史晓军..边条翼和近距鸭翼布局模型动态气动特性分析[J].空气动力学学报,2015,(2):178-182,5.基金项目
国家自然基金 （）
