排灌机械工程学报2026，Vol.44Issue(5)：488-492,5.DOI:10.3969/j.issn.1674-8530.23.0247
前缘波浪结构对轴流风机气动性能影响试验研究
Experimental study on influence of wave leading edge structure on aerodynamic performance of axial fan
摘要
Abstract
The leading edge geometry of blades plays a critical role in the inlet flow characteristics,pressure fluctuations,and vortex evolution within axial fans.To enhance the aerodynamic performance and reduce noise,three bionic wave leading edge structures with varying amplitudes and wavelengths were designed based on biomimetic principles.The IDDES hybrid turbulence model and the Ffowcs-Williams&Hawkings(FW-H)acoustic analogy were conducted for numerical simulation,and the re-liability of the numerical model was verified by experimental data.The results demonstrate excellent agreement between simulations and experiments,with discrepancies within 2%.The comparative analy-sis indicates that the wave leading edge structures generate counter-rotating vortex pairs near wave troughs,effectively suppressing total vorticity and broadband noise.Among the tested configurations,the A7W10 design(A/C=7.6%,W/C=10%)exhibits optimal performance,achieving a 17.0%in-crease in total pressure,a 5.9%improvement in efficiency,and a 2.83 dB noise reduction at the moni-toring point.This study elucidates the mechanism of vortex control and noise mitigation induced by wave leading edges structure,providing a theoretical basis for designing high-efficiency and low-noise axial fans.关键词
轴流风机/仿生设计/波浪前缘/计算流体力学/气动性能/噪声控制Key words
axial fan/bionic design/wave leading edge/CFD/aerodynamic performance/noise control分类
农业科技引用本文复制引用
邵准远,林建忠,贾海军,杜红波..前缘波浪结构对轴流风机气动性能影响试验研究[J].排灌机械工程学报,2026,44(5):488-492,5.基金项目
国家自然科学基金资助项目(12132015) （12132015）
