| 多段翼型襟翼滑动非定常粘性流数值模拟 |
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| 引用本文： | 付艳丽,李孝伟.多段翼型襟翼滑动非定常粘性流数值模拟[J].上海大学学报(自然科学版),2009,15(4):394-398. |
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| 作者姓名： | 付艳丽 李孝伟 |
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| 作者单位： | 上海大学 上海市应用数学和力学研究所，上海 200072 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 运用动态嵌套网格技术和双时间推进算法，对多段翼型襟翼滑动的非定常粘性流进行数值模拟和研究.计算定常情况下的压力分布，并与实验数据进行对比，验证数值方法的实用性.同时对非定常情况进行数值研究，分析襟翼在不同的滑动速度下，幅度和频率对多段翼型的阻力、升力和力矩产生的影响.得到的结果对襟翼运动形式的设计具有一定的借鉴意义.
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| 关 键 词： | 动态嵌套网格 双时间推进算法 Navier-Stokes方程 |
Numerical Simulation of Usteady Flows over Gliding Flap of Multi-element Airfoils |
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| FU Yan-li,LI Xiao-wei.Numerical Simulation of Usteady Flows over Gliding Flap of Multi-element Airfoils[J].Journal of Shanghai University(Natural Science),2009,15(4):394-398. |
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| Authors: | FU Yan-li LI Xiao-wei |
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| Institution: | Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China |
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| Abstract: | Unsteady viscous flows over gliding flap of multi-element airfoils are simulated and studied by using moving overlapped grids and the dual-time stepping method. In order to verify the numerical method, pressure distributions of multi-element airfoils in a steady case are calculated and compared with experimental data. Effects of oscillation amplitudes and frequencies on drags, lifts and moments of the multi-element airfoils are analyzed with unsteady simulations for different gliding velocity of the flap. The obtained results are useful in the design of motion of the flap. |
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| Keywords: | moving overlapped grids dual-time stepping method Navier-Stokes equations |
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