scholarly journals Modelling and robust control of fluidic thrust vectoring and circulation control for unmanned air vehicles

2008 ◽  
Vol 222 (5) ◽  
pp. 333-345 ◽  
Author(s):  
D-W Gu ◽  
K Natesan ◽  
I Postlethwaite
Keyword(s):  
Robust Control ◽  
Unmanned Air Vehicles ◽  
Circulation Control ◽  
Thrust Vectoring ◽  
Fluidic Thrust Vectoring ◽  
Air Vehicles

Performance of a Thrust-Vectoring Solution for Unmanned Air Vehicles

2012 ◽  
Vol 28 (5) ◽  
pp. 1125-1129 ◽  
Author(s):  
Nicolas Binder ◽  
Xavier Carbonneau
Keyword(s):  
Unmanned Air Vehicles ◽  
Thrust Vectoring ◽  
Air Vehicles

Pose observers for Unmanned Air Vehicles

2009 ◽  
Author(s):  
S. Bras ◽  
J. F. Vasconcelos ◽  
C. Silvestre ◽  
P. Oliveira
Keyword(s):  
Unmanned Air Vehicles ◽  
Air Vehicles

scholarly journals Research on control effectiveness of fluidic thrust vectoring

2021 ◽  
Vol 104 (1) ◽  
pp. 003685042199813
Author(s):  
Fei Xue ◽  
Gu Yunsong ◽  
Yuchao Wang ◽  
Han Qin
Keyword(s):  
High Altitude ◽  
Ground State ◽  
Deflection Angle ◽  
Internal Flow ◽  
Lateral Force ◽  
Control Surface ◽  
Low Density ◽  
Thrust Vectoring ◽  
Density State ◽  
Fluidic Thrust Vectoring

In view of the control effects of fluidic thrust vector technology for low-speed aircraft at high altitude/low density and low altitude/high density are studied. The S-A model of FLUENT software is used to simulate the flow field inside and outside the nozzle with variable control surface parameters, and the relationship between the area of control surface and the deflection effect of main flow at different altitudes is obtained. It is found that the fluidic thrust vectoring nozzle can effectively control the internal flow in the ground state and the high altitude/low density state. and the mainstream deflection angle can be continuously adjusted. The maximum deflection angle of the flow in the ground state is 21.86°, and the maximum deviation angle of the 20 km high altitude/low density state is 18.80°. The deflecting of the inner flow of the nozzle is beneficial to provide more lateral force and lateral torque for the aircraft. The high altitude/low density state is taken as an example. When the internal flow deflects 18.80°, the lateral force is 0.32 times the main thrust. For aircraft with high altitude and low density, sufficient lateral and lateral torque can make the flying aircraft more flexible, which can make up the shortcomings of the conventional rudder failure and even replace the conventional rudder surface.

Effect of Control Parameters of Secondary Jet on Fluidic Thrust Vectoring

2014 ◽  
Vol 998-999 ◽  
pp. 613-616
Author(s):  
Li Li ◽  
Dong Ping Wang ◽  
Tsutomu Saito
Keyword(s):  
Flow Field ◽  
Control Parameters ◽  
Jet Injection ◽  
Specific Design ◽  
Initial State ◽  
Thrust Vectoring ◽  
Original Hypothesis ◽  
Fluidic Thrust Vectoring

The flow field was simulated in a 2D convergent-divergent nozzle, for fluidic thrust vectoring with N-S method. Based on the specific design, the effects of control parameters of secondary jet injection is investigated, and a method is proposed to calculate the initial state of secondary jet, which is different from original hypothesis of stagnation. The results showed that the two methods have closed results and the stagnation hypothesis is suitable for the calculation of the initial state of secondary jet.

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