CAJ | 학술논문

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。
탐토료재이유고승력다단익형요류계산중부면층망격채용각향이성삼각형망격적기술。통과대경전적NLR-7301량단익형요류적계산，종수치계산각도평고료자연혼합망격뢰낙평균N-S방정구해연건대해류형부면층망격적해산능력。통과여학인시험수거대비，재부면층채용각향이성삼각형망격진행이유고승력다단익형요류계산，기결과구유교고적가신도。재차기출상，채용동양책략，평고료다단익형요류계산중익형후연적궤하처리、단류모형선취등관건CFD요소대계산결과적영향。
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 .