2D Simulation of Designed Dual Throat Nozzle using Geometrical Analogy

Recently, a novel technique using dual throat nozzles is introduced for thrust vectoring applications. The present paper discusses this new technique. All thrust vectoring techniques are evaluated with some common parameters: nozzle discharge coefficient, system thrust ratio, thrust vector angle and thrust vectoring efficiency. For a given micro turbine nozzle geometry, a double throat nozzle is designed using dimensional scaling or geometrical analogy. Then, by comparing the results obtained from a designed geometry for discharge coefficient, thrust vector angle and thrust vector efficiency, the DTN performance is reported. The designed DTN deflected the vector angle of 18 degrees with the fluidic injection flow rate equal to 10 percent of the primary flow rate.