Low-diffusion preconditioning scheme for numerical simulation of low-speed flows past airfoil

被引：0
|
作者：
相倩 [1 ,2 ,3 ]
吴颂平 [1 ,2 ,3 ]
李椿萱 [1 ,2 ,3 ]
曹宁 [1 ,2 ,3 ]
机构：
[1] School of Aeronautic Science and Engineering,Beihang University
[2] National Laboratory for Computational Fluid Dynamics,Beihang University
[3] Ministry of Education Key Laboratory of Fluid Mechanics,Beihang University
来源：
AppliedMathematicsandMechanics(EnglishEdition) | 2011年 / 32卷 / 05期
关键词：
numerical simulation; preconditioning; steady flow; airfoil;
D O I：
暂无
中图分类号：
V212.1 [飞机飞行力学];
学科分类号：
08 ; 0825 ;
摘要：
The preconditioning technique can address the stiffness of a low Mach number flow,while its stability is poor.Based on the conventional preconditioning method of Roe’s scheme,a low-diffusion scheme is proposed.An adjustable parameter is introduced to control numerical dissipation,especially over the dissipation in the boundary layer and extremely in a low speed region.Numerical simulations of the low Mach number and low Reynolds number flows past a cylinder and the low Mach number and high Reynolds number flows past NACA0012 and S809 airfoils are performed to validate the new scheme. Results of the three tests well agree with experimental data,showing the applicability of the proposed scheme to low Mach number flow simulations.
引用
收藏
页码：613 / 620
页数：8
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