三种湍流模型在跨声速绕流中的计算精度分析  

Computation Accuracy Analysis of Three Turbulence Models in Transonic Flow

作　　者：郑秋亚[1,2] 左大海[2] 刘三阳[1] 

机构地区：[1]西安电子科技大学理学院,西安710071 [2]长安大学理学院,西安710064

出　　处：《弹箭与制导学报》2011年第5期152-154,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：航空科学基金(20081431);中央高校基本科研业务费专项基金(CHD2010JC101)资助

摘　　要：通过求解雷诺平均Navier-Stokes方程考察Spalart-Allmaras、Wilcox’s k-ω和Menter’s SST三种湍流模型在跨声速流动中的计算精度。结果表明:Menter’s SST模型预测的力和力矩最接近实验数据;Spalart-Allmaras模型的压力分布和激波位置与Menter’s SST模型的一致,Wilcox’s k-ω模型的激波位置相对偏后,且预测的升力和摩擦阻力偏大。The computation accuracy of three different turbulence models including Spalart-Allmaras model,Wilcox＇s k-ω model and Menter＇s SST model in transonic flow was investigated by solving Reynolds averaged Navier-Stokes equations.The results show that the computed force and moment using SST model has the highest accuracy compared with the experiment.The predicted distribution of pressure and position of the shock wave using Spalart-Allmaras model agrees very well with those from Menter＇s SST model.The predicted position of the shock wave using Wilcox＇s k-ω model is slightly backward compared with that of SST model.

关 键 词：计算精度 NAVIER STOKES方程 跨声速流动 湍流模型 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]