| Citation: | Yang Zihan, Gu Yunsong, Li Linkai, et al. Research on multi-axis vector control characteristics of supersonic axisymmetric fluidic thrust vectoring nozzle[J]. Journal of Aerospace Power, 2026, 41（X）：20250484 doi: 10.13224/j.cnki.jasp.20250484
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Passive fluidic thrust vectoring technology has emerged as a frontier research hotspot in aircraft thrust vector control due to its advantages of requiring no external gas source, simple structure, and low observability. A supersonic axisymmetric fluidic thrust vectoring nozzle with six passive circumferentially uniform secondary flow channels was designed. By controlling the on/off combinations of these secondary flow channels, two control strategies were established. Utilizing schlieren flow visualization and air-bridge balance force measurement techniques, the jet deflection characteristics and thrust vectoring performance of the nozzle within the nozzle pressure ratio (NPR) range of 3.5 to 5.0 were systematically investigated. Experimental results demonstrated that the nozzle successfully achieved vector control in 12 circumferential directions, with maximum thrust vector angles reaching 9.8° in both the primary and secondary control directions. The highest linearity was 89.58% in the primary control direction and 97.28% in the secondary control direction. The maximum thrust vectoring efficiency of the nozzle reached 13.45°/%. This research could provide experimental evidence and design references for further engineering application of passive fluidic thrust vectoring technology in platforms requiring multi-axis control moments, such as missiles and rockets.
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