大型气动声学风洞轴流风扇气动与噪声特性数值评估

刘沛清; 陈阅; 张瑾; 屈秋林; 郭昊; 马利川

doi:10.7638/kqdlxxb-2025.0030

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大型气动声学风洞轴流风扇气动与噪声特性数值评估

研究论文 | 更新时间：2026-05-28

- 大型气动声学风洞轴流风扇气动与噪声特性数值评估
- Numerical evaluation of the aerodynamic and noise characteristics of an axial flow fan in a large aeroacoustic wind tunnel
- 空气动力学学报 2025年43卷第10期页码：1-11
- 作者机构：
  
  1. 北京航空航天大学航空气动声学工信部重点实验室,北京,100191
  2. 北京航空航天大学航空科学与工程学院,北京,100191
  3. 北京航空航天大学中法工程师学院/国际通用工程学院,北京,100191
- 作者简介：
  
  刘沛清*（1960—），男，山西忻州人，研究方向：旋涡分离与控制、高速层流控制技术等. E-mail：lpq@buaa.edu.cn
- 基金信息：
  
  国家大型设施资助计划
- DOI：10.7638/kqdlxxb-2025.0030
  中图分类号： V211.3
- 纸质出版：2025
- 稿件说明：
移动端阅览
刘沛清, 陈阅, 张瑾, 等. 大型气动声学风洞轴流风扇气动与噪声特性数值评估[J]. 空气动力学学报, 2025, 43(10): 1−11.

LIU Peiqing, CHEN Yue, ZHANG Jin, et al. Numerical evaluation of the aerodynamic and noise characteristics of an axial flow fan in a large aeroacoustic wind tunnel[J]. 2025, 43(10): 1-11.
刘沛清, 陈阅, 张瑾, 等. 大型气动声学风洞轴流风扇气动与噪声特性数值评估[J]. 空气动力学学报, 2025, 43(10): 1−11. DOI： 10.7638/kqdlxxb-2025.0030

LIU Peiqing, CHEN Yue, ZHANG Jin, et al. Numerical evaluation of the aerodynamic and noise characteristics of an axial flow fan in a large aeroacoustic wind tunnel[J]. 2025, 43(10): 1-11. DOI： 10.7638/kqdlxxb-2025.0030.

摘要

本文对北京航空航天大学4 m × 3 m低湍流度气动声学风洞（aeroacoustic wind tunnel of Beihang University

BHAW）的风扇系统流场及声学性能进行了数值模拟，并采用CFD/ACTRAN混合方法评估了该风洞轴流风扇的气动噪声特性。该轴流风扇基于任意涡流叶栅设计方法，任意涡流指数取0.85，并结合叶栅数据进行修正。最终设计由16片桨叶和7片反扭导流片组成。桨叶叶根区域采用GOE797翼型（相对厚度16%），叶尖区域采用GOE796翼型（相对厚度12%），反扭导流片统一采用C4翼型（相对厚度12%）。数值模拟结果与实验验证对比表明：在设计转速310 r/min下，风扇流量的模拟值与实测值相对误差小于2.3%，电机输出功率的相对误差小于4.6%，风扇增压模拟值为

2364.9

Pa，与设计值误差为3.4%。流场分析表明，气流轴向性保持良好，全工况范围内无流动分离。声学评估结果显示，在风扇转速310 r/min、对应开口试验段最高风速80 m/s条件下，入口与出口10 m测点处的总声压级分别为124 dB与123 dB，基频82 Hz处的离散噪声分别为115 dB与113 dB，实现了低噪声设计目标。

Abstract

This study numerically investigates the flow field and aerodynamic performance of the axial fan system in the 4 m × 3 m low-turbulent and aeroacoustic wind tunnel of Beihang University (BHAW). A hybrid CFD/ACTRAN approach is employed to evaluate the aerodynamic noise characteristics of the fan. The axial fan is designed using an arbitrary vortex blade row method with a vortex index of 0.85

cal

ibrated with cascade data. The final configuration consists of 16 rotor blades and 7 counter-swirl stator vanes. The rotor uses GOE797 airfoils (16% relative thickness) at the root and GOE796 airfoils (12% relative thickness) at the tip

while the stator vanes uniformly adopt the C4 airfoil (12% relative thickness). Numerical results agree well with experimental measurements: at the design speed of 310 r/min

the deviation in flow rate is less than 2.3%

and motor power output deviation is below 4.6%. The simulated total pressure rise is

2364.9

showing a 3.4% deviation from the design value. Flow field analysis confirms well-preserved axial flow without separation across all operating conditions. Acoustic evaluation shows that at 310 r/min

corresponding to a maximum test-section speed of 80 m/s

the overall sound pressure levels measured at 10 m from the inlet and outlet are 124 dB and 123 dB

respectively. The discrete noise at the fundamental frequency of 82 Hz reaches 115 dB at the inlet and 113 dB at the outlet

meeting the low-noise design objectives.

关键词

Keywords

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