翼身融合型无人机升力面射流增升实验研究  

An Experimental Study on Enhancement of the Lifting Surface Jet Flow in Blended-Wing-Body UAVs

作　　者：李孟金 江善元[1] 杨伟华 张子晔 程鹏飞 LI Mengjin;JIANG Shanyuan;YANG Weihua;ZHANG Ziye;CHENG Pengfei(School of Aircraft Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学航空宇航学院,江西南昌330063

出　　处：《郑州航空工业管理学院学报》2025年第2期37-42,共6页Journal of Zhengzhou University of Aeronautics

基　　金：江西省飞行器设计与气动仿真重点实验室资助项目(EI202206269)。

摘　　要：为了探究主动射流控制对翼身融合型无人机升阻特性的影响,以翼身融合型无人机模型为研究对象,通过实验研究在有无射流的情况下以及射流角度分别为9°、12°、15°、18°和21°的情况下,翼身融合型无人机的升力特性、阻力特性以及升阻比的变化,对比分析两种情况下升阻特性不同的原因。研究结果表明,在射流装置安装角度相同情况下,有射流无人机的失速迎角在20°以上,无射流无人机的失速迎角在18°附近,即射流可以延缓气流分离,提高翼身融合型无人机的失速迎角;在有射流的情况下,射流装置的安装角度为9°时,升阻比总体比安装角度12°、15°、18°和21°时的升阻比更大,即9°为射流装置的最佳安装角。In order to investigate the effect of active jet flow control on the lift and resistance characteristics of blended-wing-body unmanned aerial vehicles, an experimental study was conducted on a blended-wing-body UAV model under different conditions of with or without jet flow, and the jet angles were set to 9°,12°,15°,18° and 21℃ respeclively. The reasons for the lift and characteristics under the two conditions were compared and analyzed. The results showed that, under the same installation angle of the jet device, the stalling angle of attack of the UAV with jet flow was above 20°, whereas that of the UAV without jet flow was approximately 18°. In other words, jet flow can delay airflow separation and increase the stalling angle of attack of the blended-wing-body UAV. Moreover, among the tested jet angles. the confiquration with a 9° installation angle achieved the highest lift-resistance ratio, indicating that 9° was the optimal installation angle for the enhancement of jet flow.

关 键 词：翼身融合 无人机 升力面 射流增升 

分 类 号：V218[航空宇航科学与技术—航空宇航推进理论与工程]