Experimental investigation on the transient process of jet deflection controlled by passive secondary flow

Shi, Nanxing; Gu, Yunsong; Zhou, Yuhang; Wang, Yi; Zhao, Li

doi:10.1007/s12650-022-00841-y

Cited by 5 publications

(1 citation statement)

References 24 publications

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“…Therefore, these methods are defined as active FTVC. In our study, we investigated a passive FTVC nozzle, which only consists of two bilateral inclined offset walls and a pair of secondary flow valves [15]. There is no need for an air source, high-pressure device, or engine bleed air to generate an active secondary flow.…”

Section: Introductionmentioning

confidence: 99%

An Optimized Pressure-Based Method for Thrust Vectoring Angle Estimation

Shi,

Gu,

et al. 2023

Aerospace

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This research developed a pressure-based thrust vectoring angle estimation method for fluidic thrust vectoring nozzles. This method can accurately estimate the real-time in-flight thrust vectoring angle using only wall pressure information on the inner surface of the nozzle. We proposed an algorithm to calculate the thrust vectoring angle from the wall pressure inside the nozzle. Non-dominated sorting genetic algorithm II was applied to find the optimal sensor arrays and reduce the wall pressure sensor quantity. Synchronous force and wall pressure measurement experiments were carried out to verify the accuracy and real-time response of the pressure-based thrust vectoring angle estimation method. The results showed that accurate estimation of the thrust vectoring angle can be achieved with a minimum of three pressure sensors. The pressure-based thrust vectoring angle estimation method proposed in this study has a good prospect for engineering applications; it is capable of accurate real-time in-flight monitoring of the thrust vectoring angle. This method is important and indispensable for the closed-loop feedback control and aircraft attitude control of fluidic thrust vectoring control technology.

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Section: Introductionmentioning

confidence: 99%