Effects of missile rotation on supersonic fluidic element

The effects of missile rotation on the inner flow field and the output thrust characteristic of supersonic fluidic elements (SFE) were investigated. By using the two-dimensional Navier-Stokes equations and RNG k-ε turbulent model, numerical simulation method of computational fluid dynamics (CFD) and technique of sliding grids were used for numerical simulation. The results show that the missile rotation has hardly effect on inner flow field structure of SFE, but some effects on the control thrust of attitude control motors both in magnitude and in direction. These conclusions can be used for system design of rotating missile in the attitude control system and selection of structure and pneumatic parameters for supersonic fluidic elements.