风沙环境对翼型边界层厚度的影响研究  

INVESTIGATION ON IMPACT OF SAND-WIND ENVIRONMENT ON AIRFOIL BOUNDARY LAYER THICKNESS

作　　者：李银然[1,2,3] 陈芳园 李仁年 李德顺[1,2,3] 赵丽 Li Yinran;Chen Fangyuan;Li Rennian;Li Deshun;Zhao Li(College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Key Laboratory of Fluid Machinery and System,of Gansu Province,Lanzhou 730050,China;Wind Energy Technology Research Center of Gansu Province,Lanzhou 730050,China)

机构地区：[1]兰州理工大学能源与动力工程学院,兰州730050 [2]甘肃省流体机械及系统重点实验室,兰州730050 [3]甘肃省风力机工程技术研究中心,兰州730050

出　　处：《太阳能学报》2022年第1期6-10,共5页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51566011,51766009)。

摘　　要：为研究风沙环境对风力机翼型边界层的影响,采用无黏模型、转捩模型和离散相模型对三维S809翼型的边界层特性进行数值模拟,并对清洁空气和风沙环境中翼型的边界层特性进行对比分析。结果表明:相较于清洁空气,沙尘颗粒的加入使翼型边界层厚度减小。同一弦向位置,随着颗粒直径的增大,翼型边界层厚度呈先减小后增大的趋势;随着颗粒质量浓度的增大,翼型的边界层厚度逐渐减小。Inviscid model,Transition Model and Discrete Phase Model(DPM)are used for the simulation of 3 D S809 airfoil to investigate the influence of sand-wind environment on the boundary layer of wind turbine airfoil.The characteristics of the airfoil boundary layer in clean air and sand-wind environments are compared.The results shown that the addition of sand particles always reduces the thickness of the airfoil boundary layer.At the same chord position,the airfoil boundary layer thickness decreases and then increases with the increase of particle diameter;the boundary layer thickness of the airfoil gradually decreases with the increase of particle mass concentration.

关 键 词：风力机 翼型 势流流动 沙尘颗粒 边界层厚度 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]