Attenuation of cross-flow fan noise using porous stabilizers

作者：Lai Huanxin^*; Wang Meng; Yun Chuye; Yao Jin

来源：International Journal of Rotating Machinery, 2011, 2011.

DOI：10.1155/2011/528927

• Cross flows
• Fan aerodynamics
• Fan noise
• Folded plates
• Front walls
• Internal flow field
• Performance curve
• Plenum chamber
• Porous structures
• Qualitative analysis
• Sound radiations

This paper presents a qualitative analysis of controlling the cross-flow fan noise by using porous stabilizers. The stabilizer was originally a folded plate. It is changed into a porous structure which has a plenum chamber and vent holes on the front wall. In order to investigate the influences of using the porous stabilizers, experiments are carried out to measure the cross-flow fan aerodynamic performances and sound radiation. Meanwhile, the internal flow field of the fan is numerically simulated. The results show that the porous stabilizers have not produced considerable effect on the cross-flow fan';s performance curve, but the noise radiated from the fan is strongly affected. This indicates the feasibility of controlling the cross-flow fan noise by using the porous stabilizers with selected porosity.

• 出版日期2011
• 单位华东理工大学