零压力梯度平板边界层转捩的数值模拟

A Numerical Simulation of the Boundary Layer Transition on a Plate with Zero Pressure Gradient

对平板边界层转捩试验T3A和T3B进行了数值模拟,计算值与实验值吻合的较好。通过对零压力梯度的平板转捩现象的研究得出以下的结论:转捩流动的复杂性对流场边界层的影响不容忽视;M-L转捩模型能比较准确地预测转捩的发生和发展过程,在高湍流度下使用全湍流模型来模拟转捩流动的误差较小。

A numerical simulation of the boundary layer transition tests T3A and T3B on a plate was performed and the calculated values were in relatively good agreement with the test ones.Through a study of the phenomenon of boundary layer transition on a plate at zero pressure gradient,the authors have concluded that the influence of the complexity of the transition flows on the boundary layer of a flow field should not be neglected.The M-L transition model can somewhat accurately predict the generation and development process of the transition.At a high turbulence,the use of a total turbulence model to simulate a transition flow will result in a relatively small error.