实验流体力学2026，Vol.40Issue(3)：39-46,8.DOI:10.11729/syltlx20250080
超声速多轴无源流体推力矢量喷管控制特性研究
Research on the control characteristics of multi-axis supersonic fluidic thrust vectoring nozzle based on the passive secondary flow
摘要
Abstract
Fluidic thrust vectoring control technology has emerged as a critical solution for aircraft attitude control,demonstrating exceptional potential in propulsion-integrated design and flight performance enhancement.Existing supersonic passive ejector-type fluidic thrust vectoring nozzles predominantly employ 2D configurations,and thus are limited to single-axis pitch control.This study designed a multi-axis passive fluidic thrust vectoring nozzle,which feature a divergent section structure with eight circumferentially arranged secondary flow injection channels to achieve multi-axis thrust vectoring control.Through synchronized schlieren visualization and total pressure measurements,the shock wave structures and thrust vectoring characteristics were systematically investigated under diverse control modes.Experimental results demonstrate that at a nozzle pressure ratio(NPR)of 4.0,thrust vectoring control can be achieved in all 16 circumferential directions by selectively opening and closing secondary flow channels;As the number of closed secondary flow channels increases,the flow vectoring angle gradually increases.The maximum flow vectoring angle in the direction of primary control is 6°,and the linearity is 77.85％;the maximum flow vectoring angle in the direction of secondary control is 5°,and the linearity reaches 96％.关键词
无源流体推力矢量控制/超声速射流控制/波系结构/轴对称喷管/组合控制Key words
fluidic thrust vectoring control/supersonic jet/wave system/axisymmetric nozzle/combined control strategy分类
航空航天引用本文复制引用
杨子涵,顾蕴松,周宇航,张勇,樊羽恒..超声速多轴无源流体推力矢量喷管控制特性研究[J].实验流体力学,2026,40(3):39-46,8.基金项目
国家自然科学基金项目(12472274) （12472274）
