摘要
为在中型机上实现对湍流运动的大涡模拟,采用Moin的基本模型,在数值计算中采用了诸如高斯滤波函数、速度压力交错网格、谱方法以及一种简单的压力计算的修正等方法和技巧,计算结果与Moin结果比较,表明在我国现有条件下也有可能进行大涡模拟方面的工作。
The purpose of this paper is to realize the large eddy simulation (LES) of turbulence with a moderate computer. The Moin's model was used in the present paper. Some methods and techniques in the calculation were used, such as Gaussian filter function, stag-grid system of velocity and pressure, spectrum method and a simple revision method of pressure computation. The comparisons with Moin's results show that our results are reliable and man can also make LES in our present conditions in China.
出处
《空气动力学学报》
CSCD
北大核心
1990年第3期264-271,共8页
Acta Aerodynamica Sinica
关键词
湍流
大涡模拟
槽道
turbulence, large eddy simulation, numerical simulation of turbulence.
