带副翼三维机翼粘性绕流计算的嵌套网格方法

Chimera Grid Calculation of 3D Viscous Flow over Wing with Aileron

严格考虑副翼端面和机翼切口流动而运用嵌套网格方法 ,生成了带副翼三维机翼的计算网格。流场计算采用雷诺平均 Navier- Stokes方程和 Johnson- King湍流模型。数值计算结果与实验值吻合很好。

With the chimera embedding technique, the entire flow field was divided into small sub-regions with overlapping grids. In each sub-region, the Johnson-King turbulence model was used to solve the Reynolds-averaged Navier-Stokes equations iteratively. After each iteration, the algorithm provides automatically the information exchanges among different sub-regions. The method was applied to the viscous flow calculation of a Delta wing with aileron. Computational results are in agreement with experimental data.