北京航空航天大学学报 ›› 2015, Vol. 41 ›› Issue (1): 23-28.doi: 10.13700/j.bh.1001-5965.2014.0072

• 论文 • 上一篇    下一篇

低噪声风力机翼型设计方法及实验分析

汪泉1, 陈进2, 程江涛2,3, 王君1, 孙金风1, 游颖1   

  1. 1. 湖北工业大学 机械工程学院, 武汉 430068;
    2. 重庆大学 机械工程学院, 重庆 400030;
    3. 丹麦技术大学 机械工程学院, 灵比 DK-2800
  • 收稿日期:2014-02-24 出版日期:2015-01-20 发布日期:2015-02-04
  • 通讯作者: 汪泉(1984-),男,湖北武汉人,讲师, quan_wang2003@163.com,主要研究方向为机械系统优化设计及可再生能源装备设计理论与方法. E-mail:quan_wang2003@163.com
  • 基金资助:

    国家自然科学基金资助项目(51405140);国家863计划资助项目(2012AA051301);湖北工业大学博士科研启动金资助项目(BSQD13016)

Wind turbine airfoil design method with low noise and experimental analysis

WANG Quan1, CHEN Jin2, CHENG Jiangtao2,3, WANG Jun1, SUN Jinfeng1, YOU Ying1   

  1. 1. School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China;
    2. College of Mechanical Engineering, Chongqing University, Chongqing 400030, China;
    3. Department of Mechanical Engineering, Technical University of Demark, Lyngby DK-2800, Denmark
  • Received:2014-02-24 Online:2015-01-20 Published:2015-02-04

摘要:

为了研究风力机翼型的噪声特性,基于翼型泛函集成理论与翼型噪声计算模型,建立了低噪声翼型优化设计数学模型,提出在设计攻角情况下升阻比与噪声比值最大为目标函数,对优化后的新翼型CQU-DTU-B18翼型与NACA-64-618翼型在相同的风洞实验及风速条件下进行了噪声对比分析.研究表明,理论噪声计算模型虽然与实验数据有一定的偏差,但是翼型的升压级随频率的变化趋势是一致的,表明了翼型噪声计算模型的准确性;相比NACA-64-618翼型,CQU-DTU-B18翼型具有更低的噪声特性,从而验证了该设计方法的可行性.对于如何设计低噪声翼型及怎样降低翼型噪声具有重要的指导作用.

关键词: 风力机翼型, 噪声, 风洞实验, 声压级, 频率

Abstract:

In order to study the noise characteristic of wind turbine airfoils, the airfoil optimal design mathematic model was built based on airfoil functional integrated theory and noise calculated model. The new optimized objective function of maximizing lift/drag to noise was developed on the design angle of attack. Then, the comparison of sound pressure level between CQU-DTU-B18 and NACA-64-618 airfoil was analyzed under the same condition of wind tunnel experiment and wind speed. It is indicated that the changed trend of the predicted noise results are in agreement with that of the tested data, though there is a certain difference between the theory results and experiment data. Compared with NACA-64-618 airfoil, the CQU-DTU-B18 airfoil exhibits lower noise, which validates the feasibility of this design method. It is a guide to design wind turbine airfoil with lower noise and to reduce airfoil noise.

Key words: wind turbine airfoil, noise, wind tunnel test, sound pressure level, frequency

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