난류모델 압축성 및 회전/곡률 보정을 적용한 축대칭 기저유동 해석

초록

This paper presents the results of two RANS model corrections, compressiblity correction and rotation/curvature correction to k-ω SST model for base drag prediction. The performance of the corrections for axisymmetric base flow simulations is scrutinized by comparing the detail flow features, such as velocity profile, turbulent kinetic energy profile and Reynolds shear stress. It is found that two corrections improve the prediction accuracy of base drag when compared to the baseline model.