辽宁工程技术大学学报（自然科学版）2023，Vol.42Issue(6)：707-714,8.DOI:10.11956/j.issn.1008-0562.2023.06.010
矩形槽机匣对轴流通风机气动性能和噪声的影响
Influence of rectangular slot receiver on aerodynamic performance and noise of axial flow fan
摘要
Abstract
In order to explore the influence of rectangular groove casing on the aerodynamic performance and noise of axial flow fan,the unipolar axial flow fan is taken as the research object.FLUENT is used to numerically calculate the performance of casing fan in each scheme,and Lighthill acoustic analogy is used to predict the noise.The results show that the rectangular groove casing can reduce the total pressure of the fan and improve the efficiency.The flow field in the blade tip region is more disordered,the static pressure on the blade surface is redistributed,the development of the leakage flow is slowed down,and the power capacity of the impeller is reduced.The near-field of the axial fan is dominated by discrete noise,the noise in the tip region is the largest,followed by the trailing edge region,and the noise in the leading edge region is the smallest.The rectangular groove casing has a significant effect on the noise of the fan,and a reasonable slotted structure can reduce the noise of the fan.The reliability of the numerical calculation is verified by experiments,which provides data support and experimental basis for the study of aerodynamic performance and noise of axial flow fan.关键词
机匣/矩形槽/数值计算/泄漏流/噪声Key words
receiver/rectangular slots/numerical calculation/leakage flow/noise分类
机械制造引用本文复制引用
代元军,赵超,李保华,吴柯..矩形槽机匣对轴流通风机气动性能和噪声的影响[J].辽宁工程技术大学学报（自然科学版）,2023,42(6):707-714,8.基金项目
新疆高校科研计划自然科学重点项目(XJEDU2019I027) （XJEDU2019I027）
新疆高校科研计划自然科学青年项目(XJEDU2021Y051) （XJEDU2021Y051）
