As a typical projectile with high spinning speed was taken as an example
the flight data of the projectile at supersonic
transonic and subsonic states were separately defined as the inflow conditions
and the fluid-thermal analysis was simulated by a combination of sliding mesh and multi-coordinate approaches. The coupling implicit algorithms based on density
Roe-FDS (flux difference splitting) flux scheme and SST (shear stress transfer) k -ω turbulence were also applied in simulations. The pressure
temperature
density
heat flux and turbulent kinetic energy on the surface of the flight body with high spinning speed were studied
and compared with the flow field disregarding the spinning speed. Results demonstrated that the streamlines interfered with each other
and disturbance of the airflow on the surface of the was more intense under the spinning conditions. Moreover
airflow accumulations at the tail of the were obvious
and the development and evolution of turbulence were more complicated. The velocity
pressure
temperature
and heat flux on the surface of the flight body were higher than those disregarding the spinning speed