Abstract:

The static aerodynamic characteristics of CT-1 model at high angles of attack are simulated with patched grid and CFD software TRI sonic platform （TRIP）, and the Reynolds averaged NavierStokes equation is adopted. The free stream condition is Mach number 0.5, the angles of attack are in the range of 0°～100°, and the angles of sideslip are 0° and 5°.On the base of comparison with the test data obtained from 1.2 m transonic wind tunnel in CARDC, the influence of different methods of advection term, turbulent models, far field distance and tail supporter are emphatically discussed. Numerical results are summarized, which indicate that different styles of supporter have large influence on numerical results of static aerodynamic characteristics at high angles of attack, and the key point of comparison between test data and CFD results is to simulate the supporter of test model faithfully.

Key words: CT-1 , model,  , high , angle , of , attack,  , static , aerodynamic , characteristic,  , tail , supporter