探讨了在二维高升力多段翼型绕流计算中附面层网格采用各向异性三角形网格的技术。通过对经典的NLR-7301两段翼型绕流的计算，从数值计算角度评估了自研混合网格雷诺平均N-S方程求解软件对该类型附面层网格的解算能力。通过与确认试验数据对比，在附面层采用各向异性三角形网格进行二维高升力多段翼型绕流计算，其结果具有较高的可信度。在此基础上，采用同样策略，评估了多段翼型绕流计算中翼型后缘的几何处理、湍流模型选取等关键CFD要素对计算结果的影响。%The application of anisotropic triangular mesh behind boundary layer for two-dimensional high-lift multiple segment airfoils is discussed in this paper .The computation is performed on flow over the classic NLR-7301 high-lift airfoil to evaluate an in-house RANS solver for such type of hybrid unstruc-tured meshes .The results are compared with validated experimental data ,which shows that credible nu-merical results can be obtained on the mesh with anisotropic triangles behind the boundary layer .Based on these observations ,effects of geometric treatment and turbulence models for high-lift device modeling are evaluated .
展开▼
