Numerical simulation of an axisymmetric fluidic vectoring nozzle

A sub-scale experimental static investigation for an axisymmetric fluidic vectoring nozzle was conducted. The force and wall pressure of the nozzle were measured in the experiment. The internal flow structure of the axisymmetric fluidic vectoring nozzle, induced by the interaction of primary inflow and secondary inflow, has been simulated with the SIMPLE method which is generalized to compressible-flow. The experimental and computational results show that flow flux of secondary flow injection and nozzle pressure ratio (NPR) influenced on the vectoring angle. While the NPR was 3～6, the ratio between injection flux and primary flow flux increase while the thrust vectoring nozzle increase. While the ratio between injection flux and primary flow flux is the same, the NPR increase, the thrust vectoring nozzle decrease.