Numerical Simulation of Liquid Single Injection Thrust Vector Control

In this researche, effect of lateral liquid Freon injection on the thrust vector deviation is investigated. For this purpose, variation of different parameters as liquid injection from injector in to the nozzle and its effect on the trust deviation are considered. In this system, some of the most important parameters are; injection mass flow rate, angle injection, position injection and main flow rate from nozzle to the main flow. Simulation of flow field has been done using Fluent 6.2.16 software and for result validation, some experimental data have been used. The results shows that the optimum position of injection is about 35-40 percentage of divergent nozzle length from throat position, angle of injection has negligible effect on deviation of thrust vector and optimum values of mass flow injection depend on position of injection.