摘要
本文对不可压二维翼型势流绕流的边界元法求解作了分析,在对基本方程与边界条件进行数值离散化时,将库塔条件代入基本方程。按本方法编制的计算机程序对若干算例进行了验算。结果表明,本文提出的方法是可靠的,该法计算简捷、方便,占用计算机内存少,具有实用意义。
The boundary element method for two dimensional incompressible potential flow around the isolated airfoil is analysed in the paper. When control equations and boundary conditions are numerically discretized, the kutta-condition is led into the control equations, and then the new discrete. boundary integral equations are derived. These equations are first order linear ones and can be solved directly. The potential flow around the cylinders with and without circulation as well as the isolated airfoil NACA 0018 are studied numerically in the paper. Results have shown that the present procedure is rather accurate, reliable and simple. Application of the present procedure can save the storage of the computer and decrease the computational time.
作者
李超俊
魏百锁
Li Chaojun Wei Baoso Lin Zhijun (Xi'an Jiaotong University)
出处
《应用力学学报》
CAS
CSCD
北大核心
1991年第1期 128-132,共5页
Chinese Journal of Applied Mechanics
关键词
翼型
绕流
边界元法
库塔条件
airfoil, flow around airfoil, the boundary element method.
