尾身组合体不同类型栅格翼气动特性试验研究  

Test investigation of the aerodynamic characteristics of grid fins for configuration with body and fins

作　　者：宋书恒[1] 贺操 李永红[1] 周岭[1] 黄勇[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验流体力学》2016年第4期42-47,共6页Journal of Experiments in Fluid Mechanics

摘　　要：对于不同类型的栅格翼,采取了一种模型设计简洁、克服了在较小试验模型上安装铰链力矩天平的困难,同时又能测量栅格翼全部气动力和力矩分量的试验方法,获得了简单框架式、正置蜂窝式以及不同网格密度的斜置蜂窝式4种栅格翼在弹身影响下的亚声速和跨声速气动特性,并与平板尾翼的气动特性进行了对比,同时研究了栅格翼在尾身组合体迎风侧和背风侧不同位置时的气动特性。结果表明:栅格翼与常规平板翼各有优缺点,栅格翼结构形式、网格密度和尺寸对其气动特性有重要影响,位置对不同类型栅格翼气动特性的影响也不尽相同。A wind tunnel test program is designed to investigate aerodynamic characteristics of different grid fins in subsonic and transonic flows,which has advantages of simple model design,avoiding installation of hinge moment balance on small models,and obtaining all aerodynamic forces and moments of grid fins. The aerodynamic characteristics of grid fins are analyzed,including simple frame configuration,upright honeycomb configuration and skew honeycomb configuration with different grid densities. The aerodynamic characteristics of different grid fins and planar fins are compared,and the influence of grid fin location on its aerodynamic characteristics is also investigated. The results show that grid fins and planar fins have respective advantages and disadvantages; the configuration,grid densities,and size of grid fins have an important impact on their aerodynamic characteristics. For different grid fins,the influence of location on its aerodynamic characteristics is not the same.

关 键 词：尾身组合体 栅格翼 气动特性 试验研究 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]