| NACA0018翼型模型的仿生降噪 |
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| 引用本文： | 石磊,张成春,王晶,王永华,张雪鹏,任露泉.NACA0018翼型模型的仿生降噪[J].吉林大学学报(工学版),2011,41(6):664-668. |
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| 作者姓名： | 石磊 张成春 王晶 王永华 张雪鹏 任露泉 |
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| 作者单位： | 1. 吉林大学工程仿生教育部重点实验室,长春,130022
2. 吉林大学工程仿生教育部重点实验室,长春130022／吉林大学公共教学中心,长春130062 |
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| 基金项目： | 吉林省科技厅发展计划项目(200960320); 国家自然科学基金国际(地区)合作与交流项目(50920105504),国家自然科学基金面上项目(31071928); 吉林大学基本科研业务费项目(421060202466),吉林大学农学部青年科研基金项目(4305050102k7) |
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| 摘 要： | 根据鸮翼后缘锯齿形和前缘非光滑形态对NACA 0018翼型模型进行仿生改形设计,设计了后缘锯齿状、前缘圆齿状以及后缘锯齿状加前缘圆齿状结构的3种仿生模型。应用大涡模拟方法和FW-H方程,对比分析了NACA 0018翼型模型和3种仿生模型在攻角α=6°,弦长雷诺数Re=1.6×105时的气动噪声。分析结果表明:3种仿生模型与NACA 0018翼型模型相比均具有降噪效果,后缘锯齿状加前缘圆齿状的仿生模型比单一后缘锯齿状及前缘圆齿状仿生模型具有更加显著的降噪效果。
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| 关 键 词： | 工程仿生学 翼型 大涡模拟 气动噪声 |
Reduction of aerodynamic noise from NACA0018 airfoil model using bionic methods |
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| SHI Lei,ZHANG Cheng-chun,WANG Jing,WANG Yong-hua,ZHANG Xue-peng,REN Lu-quan.Reduction of aerodynamic noise from NACA0018 airfoil model using bionic methods[J].Journal of Jilin University:Eng and Technol Ed,2011,41(6):664-668. |
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| Authors: | SHI Lei ZHANG Cheng-chun WANG Jing WANG Yong-hua ZHANG Xue-peng REN Lu-quan |
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| Affiliation: | SHI Lei1,ZHANG Cheng-chun1,WANG Jing1,2,WANG Yong-hua1,ZHANG Xue-peng1,REN Lu-quan1(1.Key Laboratory of Bionic Engineering of Ministry of Education,Jilin University,Changchun 130022,China,2.Teaching Center of Basic Courses,Changchun 130062,China) |
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| Abstract: | Three bionic models were proposed by modifying the NACA 0018 airfoil model according to the serrated trailing edge and non-smooth leading edge of owl wing,named serrated trailing edge model,scalloped leading edge model,serrated trailing edge and scalloped edge combining model.The aerodynamic noise generated by the three models is investigated by numerical simulation.The source fluctuations of the flow field are computed by Large-Eddy Simulation(LES).Then the fluctuations are fed to the followed acoustical c... |
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| Keywords: | bionic engineering airfoil large-eddy simulation aerodynamic noise |
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