| 多段翼型粘性绕流计算研究 |
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| 引用本文： | 李杰,周洲.多段翼型粘性绕流计算研究[J].航空计算技术,2008,38(3):42-45. |
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| 作者姓名： | 李杰 周洲 |
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| 作者单位： | 西北工业大学,航空学院,陕西,西安,710072 |
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| 摘 要： | 针对多段翼型外形结构复杂,结构网格生成难度大的缺点,运用割补法对重叠网格技术进行了研究,生成贴体及与边界正交的高质量的结构化网格,在识别贡献单元方面,介绍了一种基于kd树的找重方法.流场求解应用雷诺平均Navier-Stokes方程结合Spalart-Allmaras一方程湍流模型在所生成的重叠网格上对多段翼型的粘性绕流进行了模拟,为了兼顾流场计算效率问题,在重叠网格的各个子块上采用多重网格方法.计算结果表明,用该方法可以很好地预计压力分布,并且计算效率得到很大的提高.
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| 关 键 词： | 重叠网格 多段翼型 多重网格 湍流模型 |
Numerical Simulation of Viscous Flow for Multi-element Airfoil Using Overlapping Grids |
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| LI Jie,ZHOU Zhou.Numerical Simulation of Viscous Flow for Multi-element Airfoil Using Overlapping Grids[J].Aeronautical Computer Technique,2008,38(3):42-45. |
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| Authors: | LI Jie ZHOU Zhou |
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| Abstract: | To solve the problem in generation of multi-element airfoil grids,the main characteristics and basic flow of the newly emerged cut-paste algorithm which generates overlapping grids by cutting and pasting hole fronts were investigated.To increase the intersection efficiency,the grid-based k-d tree is introduced.The Reynolds average Navier-Stokes equations with Spalart-Allmaras one-equation turbulence model are presented to solve the viscous flow-field based on the overlap grid.Multigrid is employed in the ch... |
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| Keywords: | overlapping grid multi-element airfoil multigrid turbulence model |
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