基于Kriging模型的风力机翼型优化设计及气动性能分析  

OPTIMIZED DESIGN AND AERODYNAMIC PERFORMANCE ANALYSIS OF WIND TURBINE AIRFOIL BASED ON KRIGING MODEL

作　　者：王清 张敏 李德顺[1] 李国强[2] 唐隆琛 Wang Qing;Zhang Min;Li Deshun;Li Guoqiang;Tang Longchen(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Key Laboratory of Rotor Aerodynamics,China Aerodynamics Research and Development Center,Mianyang 621000,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]中国空气动力研究与发展中心旋翼空气动力学重点实验室,绵阳621000

出　　处：《太阳能学报》2024年第10期625-634,共10页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(52166014);兰州理工大学红柳优秀青年人才支持计划(2022);甘肃省基础研究创新群体项目(21JR7RA277);中国空气动力研究与发展中心旋翼空气动力学重点实验室研究开放课题(RAL202201)。

摘　　要：耦合高精度数值模拟方法、Kriging模型及遗传算法,建立高效、高精度数值模拟算法。以翼型的最大升阻比和最大切向力系数为目标函数,基于S809翼型开展多状态、多目标下的气动外形优化设计。结果表明,在Re=1×10^(6)、迎角为6˚和Re=5×10^(5)、迎角为8˚两种设计工况下,优化翼型的升阻比分别提升10.34%和10.75%。为验证优化翼型在风力机设计中的适用性,进一步基于优化翼型和S809翼型分别设计三叶片风轮,对比不同工况下风轮气动性能,发现在设计工况下,基于优化翼型设计的风轮叶片风能利用系数增大7.5%;偏航工况下基于优化翼型设计的风轮叶片风能利用系数增大7.54%,证明优化翼型能更好地适应非定常状态。Coupled with high-precision numerical simulation method,Kriging agent model and genetic algorithm,an efficient and high-precision numerical simulation algorithm is established.The maximum lift-to-drag ratio and maximum tangential force coefficient of the airfoil are used as the objective functions to optimize the aerodynamic shape of the S809 airfoil under multiple states and multiple objectives.The results show that the lift-to-drag ratios of the optimized airfoil are improved by 10.34%and 10.75%for the Re=1×10^(6) with angle of attack of 6°,and Re=5×10^(5) with angle of attack of 8°,respectively.In order to verify the applicability of the optimized airfoil in wind turbine design,this paper further designs a three-blade wind turbine based on the optimized airfoil and the S809 airfoil,and compares the wind turbine aerodynamic performance under different working conditions,and finds that the CP of the wind turbine blade based on the optimized airfoil design increases by 7.5%under the design condition;while CP increases by 7.54%under the yaw condition.This proves that the optimized airfoil can better adapt to the non-constant condition.

关 键 词：翼型 优化 风力机 KRIGING模型 计算流体力学 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]