多段翼型襟翼滑动非定常粘性流数值模拟

上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (4): 394-398.

多段翼型襟翼滑动非定常粘性流数值模拟

付艳丽李孝伟

上海大学上海市应用数学和力学研究所，上海 200072

出版日期:2009-08-30 发布日期:2009-08-30
通讯作者: 李孝伟(1969～)，男，副教授，博士，研究方向为计算和设计空气动力学. E-mail:xwli@staff.shu.edu.cn

Numerical Simulation of Usteady Flows over Gliding Flap of Multi-element Airfoils

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China

Online:2009-08-30 Published:2009-08-30

摘要/Abstract

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.

关键词: 动态嵌套网格；双时间推进算法；Navier-Stokes方程

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. 

Key words: moving overlapped grids； dual-time stepping method； Navier-Stokes equations

中图分类号:

V211.3

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.

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 Edition）, 2009, 15(4): 394-398.

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