초음속 고받음각 유동을 위한 난류 모델 비교 연구

Asymmetric force and vibration caused by separation flow at high angle of attack affect the stability of supersonic missile. As a preliminary study we verified the effect of turbulence model through general 3-D slender body for the supersonic flow at high angle of attack. k-ω Wilcox model, k-ω: Wilcox-Durbin＋ model, k-ω shear-stress transport model, and Spalart-Allmaras one equation model are used. Grid sensitivity test was performed with three different grid system. results show that all models are in good agreement with the experimental data.