摘要
本文给出了一个数值模式,用于描述具有横向粗糙度变化的平面上方的湍流场内的次生环流。在此模式中,雷诺平均运动方程组的闭合,采用了代数化的雷诺应力输运方程和k-ε二方程湍流模式。计算结果和实验结果相吻合。本文还讨论了利用数值模式进行参数实验的一些结果。
A numerical model simulating the turbulence-driven secondary circulations over a flat plane with transverse variation in roughness is presented. In the model, the Reynolds equations of motion are closed with algebraic transport equations for the Reynolds stresses, coupled with the k-ε two equation turbulence model. The model produces results in agreement wirh the experimental results.
关键词
次生
环流
数值模式
湍流
边界层
secondary circulations, numerical model, turbulent boundary layer
