实验流体力学2013，Vol.27Issue(3)：103-107,112,6.
声学引导风洞高效低噪声风扇设计
The design of the high-performance low-noise fan of the acoustic pilot wind tunnel
屈晓力 1余永生 1廖达雄 2吕金磊1
作者信息
- 1. 中国空气动力研究与发展中心设备设计与测试技术研究所,四川绵阳 621000
- 2. 中国空气动力研究与发展中心空气动力学国家重点实验室,四川绵阳 621000
- 折叠
摘要
Abstract
Arbitrary vortex method is used to design a high-performance low-noise fan for the acoustic pilot wind tunnel.In the design,a more well-distributed axial speed at the outlet of fan system is obtained by regulating the rotating speed distribution,the noise generated by rotor-stator interaction is reduced by matching more reasonable rotor-stator blade number and stator backward-swept angle.According to the results of the fan aerodynamic and acoustic experiments,the efficiency of the high-performance low-noise fan is 83.9％ at its design point,which is an obvious improvement compared with the original fan setting in acoustic pilot wind tunnel(73％),meanwhile,the inlet noise of high-performance low-noise fan is 3dB(A) lower than the inlet noise of original fan,and the outlet noise of high-performance low-noise fan is 2dB(A) lower than the outlet noise of the original fan.The experimental results indicate that arbitrary vortex method has significant advantage in fan aerodynamic and acoustic performances.关键词
高效/低噪声/风扇设计/任意涡/引导风洞Key words
high performance/low noise/fan design/arbitrary vortex/pilot wind tunnel分类
航空航天引用本文复制引用
屈晓力,余永生,廖达雄,吕金磊..声学引导风洞高效低噪声风扇设计[J].实验流体力学,2013,27(3):103-107,112,6.
