Abstract
The objectives of this paper are to compare the effect of fluidic thrust vectoring (FTV) parameters on two converging-diverging nozzle models and discuss the relation of evaluation methods between thrust pitching angle and thrust pitching moment. The interaction of a secondary jet with the primary jet flow in two nozzle models is also investigated. Numerical and experimental studies of FTV were done with nozzle model 1 and nozzle model 2. The experiments are carried out with a nozzle pressure ratio (NPR) of 3-10, a secondary pressure ratio (SPR) of 1, 2 and 3, and two different secondary jet locations. Numerical simulations of the nozzle flow are performed with solving the Navier-Stokes equation, and the parameters are the same with the experimental conditions. Combinations of NPR, SPR, and secondary jet location are set to compare the performance of the two nozzle models. The thrust pitching moment and the thrust pitching angle are determined to evaluate the FTV performance. Positive inter-relation betwe...
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