流体机械2025，Vol.53Issue(6)：21-30,10.DOI:10.3969/j.issn.1005-0329.2025.06.004
复合仿生翼型对空调器用轴流风机气动性能和噪声的影响
Effects of composite bionic airfoil on aerodynamic performance and noise of axial fans for air conditioners
摘要
Abstract
To further enhance aerodynamic efficiency and effectively reduce noise of air-conditioning axial fans,a cross-species multi-element bionic design was applied to fan blades by combining the superior flight characteristics of seagull airfoils with the noise-reducing non-smooth functional structures of butterfly wing surfaces.First,CFD simulated internal flow characteristics and aerodynamic performance,with numerical model validity confirmed through experimental comparisons.Subsequently,large eddy simulation(LES)and FW-H acoustic analogy methods predicted noise levels of fans with composite bionic blades.Results demonstrate that cross-species composite blades effectively reduce flow separation losses at blade tip clearances and decrease surface pressure fluctuations.Compared to the prototype fan at identical conditions(rotational speed 730 r/min),the composite blade fan shows:9.07%higher aerodynamic efficiency,126.4 m3/h increased airflow,70.2 W reduced power consumption,and 2.6 dB noise reduction.This study provides solution references for axial fan blade design and performance optimization.关键词
轴流风机/海鸥翅膀翼型/蝴蝶翅膀尾缘/流动控制/仿生设计/气动性能/噪声Key words
axial fan/seagull wing airfoil/butterfly wing trailing edge/flow control/bionic design/aerodynamic performance/noise分类
机械制造引用本文复制引用
李帅领,柴水华,田晨晔,姜怡欣,陆琪,李跃飞,吴彦东,刘小民..复合仿生翼型对空调器用轴流风机气动性能和噪声的影响[J].流体机械,2025,53(6):21-30,10.基金项目
陕西省重点研发计划(2023-YBGY-280) （2023-YBGY-280）
国家自然科学基金面上项目(51676152) （51676152）
