计算域尺寸对风力机翼型数值模拟的影响  

The effect of computational domain size on the numerical simulation of wind turbine airfoil

作　　者：张照煌[1] 高迪 李羽童 胡德鹏 Zhang Zhaohuang;Gao Di;Li Yutong;Hu Depeng(School of Energy Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《可再生能源》2023年第5期637-643,共7页Renewable Energy Resources

摘　　要：计算域尺寸的选取对风力机翼型数值模拟至关重要,文章通过建立13种不同尺寸的计算域模型,采用雷诺时均N-S方程和SST k-ω湍流模型,在雷诺数为3×10^(6)的条件下,分析不同计算域尺寸对NACA63-418翼型升力系数、阻力系数、压强系数和流场分布规律的影响。计算结果与实验结果的对比表明,风力机翼型数值模拟的计算域最小尺寸推荐为距离翼型前缘14倍弦长,距离翼型后缘27倍弦长,距离两侧边界15倍弦长。The selection of the computational domain size is of great significance for the numerical simulation of the wind turbine airfoil.This paper established 13 different computational domain models,using Reynolds time-averaged N-S equation and turbulence model,under the Reynolds number of 3×10^(6),and analyzed the effect of different computational domain sizes on the NACA63-418 airfoil on the lift coefficient,drag coefficient,pressure coefficient,and flow field distribution.Comparing the calculation results with the experimental results,the research shows that the minimum computational domain size for the numerical simulation of the wind turbine airfoil is recommended as 14 times the chord length from the leading edge of the airfoil,27 times the chord length from the trailing edge of the airfoil,and 15 times the chord length from the boundary on both sides.

关 键 词：风力机 翼型 计算域 数值模拟 升阻力系数 流场分布 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]