Effect of secondary injection reaction heat on thrust vector control in divergent section

Compared to mechanical adjustment process, using secondary injection to control the thrust vector of solid rocket engine is a better method. Under the condition that the secondary injection can control the thrust vector, this paper tries to use other methods to make the thrust vector control have a better effect. This paper will explore that the effect of secondary injection reaction heat on thrust vector control. The main method used in this paper is the numerical simulation technology of computational fluid dynamics and the simulation model adopts an experimental model. Through CFD simulation, the parameters affecting the effect of the thrust vector control and their influence are explored. The chemical reaction will increase the side control force and the thrust vector angle, and have some positive influence on the thrust vector control.