摘要
基于湍流不平衡性的分析,通过修正雷诺应力以及模型系数的计算,提高了S-A模型在二维边界层以及三维叶栅的分离流动上的预估能力。修正后的S-A模型给出了与实验吻合较好的结果,在对于分离流动的预估能力上优于原始模型。
Based on the analysis of the nonequilibrium of turbulence, by the modification of Reynolds stresses and model coefficient, S-A turbulence model was improved on the ability to predict separation flows of 2-D boundary layer and 3-D cascade. The results by modified S-A turbulence model are consistent with experiment, indicating better simulation for separation flows superior to the original model.
出处
《推进技术》
EI
CAS
CSCD
北大核心
2008年第5期539-544,共6页
Journal of Propulsion Technology
关键词
湍流模型
分离
边界层
角区
各向异性
Turbulence model
Separation
Boundary layer
Corner region
Anisotropic
