The Comparative Analysis of Two Typical Fluidic Thrust Vectoring Exhaust Nozzles on Aerodynamic Characteristics

The comparisons of two typical fluidic thrust vectoring exhaust nozzles including two-dimensional(2-D) nozzle and axisymmetric nozzle on aerodynamic characteristics was presented by numerical simulation. The results show: the thrust vector angles increased with the increasing secondary flow but decreased with the nozzle pressure ratio (NPR) increasing. With the same secondary flow and NPR, the thrust vector angles of 2-D nozzle were higher than the axisymmetric nozzle-s. So with the lower NPR and more secondary weight flow, the much higher thrust vector angle was caused by 2-D fluidic nozzle. And with the higher NPR and less secondary weight flow, there was not much difference in angular dimension between two nozzles.

• Xin H. Zou
• Qiang Wang

• Aerodynamic characteristics
• fluidic nozzle
• vector angle
• thrust coefficient comparison.

[1] Wing D J. Static investigation of two fluidic. Thrust-vectoring concepts
on a 2DCD nozzle [R]. N A S A-TM-4574, December, 1994
[2] Wing David J, Giuliano V J. Fluidic Thrust Vectoring of an Axisymmetric
Exhaust Nozzle at Static Conditions. ASMEFEDSM97-3228, 1997.
[3] Jeffrey D. Flamm. Experimental Study of a Nozzle Using Fluidic
Counterflow for Thrust Vectoring. AIAA98-3255, 1998
[4] Deere K A. Summary of Fluidic Thrust Vectoring Research Conducted at
NASA Langley Research Center. AIAA2003´╝ì3800´╝î2003
[5] Deere K A. Computational Investigation of the Aerodynamic Effects on
Fluidic Thrust Vectoring. AIAA2000-3598´╝î2000.
[6] Deere K A, Waithe Kenrick A. Experimental and Computational
Investigation of Multiple Injection Ports in a Convergent-Divergent
Nozzle for Fluidic Thrust Vectoring. AIAA 2003-3802, 2003.