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

Shuailing Li; Shuihua Chai; Chenye Tian; Yixin Jiang; Qi Lu; Yuefei Li; Yandong Wu; Xiaomin Liu

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

Translated title of the contribution: Effects of composite bionic airfoil on aerodynamic performance and noise of axial fans for air conditioners

Shuailing Li
, Shuihua Chai
, Chenye Tian
, Yixin Jiang
, Qi Lu
, Yuefei Li
, Yandong Wu
, Xiaomin Liu

School of Energy and Power Engineering

Xi'an Jiaotong University
Ningbo Langdi Impeller Machinery Co.，Ltd.
Guangdong Midea Heating & Ventilating Equipment Co.，Ltd.

Research output: Contribution to journal › Article › peer-review

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.

Translated title of the contribution	Effects of composite bionic airfoil on aerodynamic performance and noise of axial fans for air conditioners
Original language	Chinese (Traditional)
Pages (from-to)	21-30
Number of pages	10
Journal	Fluid Machinery
Volume	53
Issue number	6
DOIs	https://doi.org/10.3969/j.issn.1005-0329.2025.06.004
State	Published - Jun 2025

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@article{b0366c5fd8754527b17ccc824187b6c3,

title = "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",

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.",

keywords = "aerodynamic performance, axial fan, bionic design, butterfly wing trailing edge, flow control, noise, seagull wing airfoil",

author = "Shuailing Li and Shuihua Chai and Chenye Tian and Yixin Jiang and Qi Lu and Yuefei Li and Yandong Wu and Xiaomin Liu",

year = "2025",

month = jun,

doi = "10.3969/j.issn.1005-0329.2025.06.004",

language = "繁体中文",

volume = "53",

pages = "21--30",

journal = "Fluid Machinery",

issn = "1005-0329",

publisher = "Editorial Department of Fluid Machinery",

number = "6",

}

TY - JOUR

T1 - 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

AU - Li, Shuailing

AU - Chai, Shuihua

AU - Tian, Chenye

AU - Jiang, Yixin

AU - Lu, Qi

AU - Li, Yuefei

AU - Wu, Yandong

AU - Liu, Xiaomin

PY - 2025/6

Y1 - 2025/6

N2 - 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.

AB - 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.

KW - aerodynamic performance

KW - axial fan

KW - bionic design

KW - butterfly wing trailing edge

KW - flow control

KW - noise

KW - seagull wing airfoil

UR - https://www.scopus.com/pages/publications/105012372449

U2 - 10.3969/j.issn.1005-0329.2025.06.004

DO - 10.3969/j.issn.1005-0329.2025.06.004

M3 - 文章

AN - SCOPUS:105012372449

SN - 1005-0329

VL - 53

SP - 21

EP - 30

JO - Fluid Machinery

JF - Fluid Machinery

IS - 6

ER -

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

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