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How do I stop my wall fan from making noise? 

Aerodynamics
Aeroacoustics
Noise
Axial compressor
Turbulence

Answers from top 10 papers

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Papers (10)Insight
Journal Article•DOI
Vortex shedding noise of low tip speed, axial flow fans
R.E. Longhouse
08 Jul 1977-Journal of Sound and Vibration
134 Citations
Vortex shedding can be a significant source of noise when the fan is operated in a lightly loaded condition.
Journal Article•DOI
Performance, aeroacoustics and feature extraction of an axial flow fan with abnormal blade angle
Chunxi Li, Qing Lin, Xueliang Ding, Xuemin Ye 
15 May 2016-Energy
26 Citations
The results show that under the abnormal condition, fan performance is lower than normal value and the noise rises.
Journal Article•DOI
Reduction of fan noise by annulus boundary layer removal
C.J. Moore
22 Dec 1975-Journal of Sound and Vibration
16 Citations
Much of the noise produced by a fan is due to varying forces caused by the unsteady flow field through which it passes.
Journal Article•DOI
Improving active control of fan noise with automatic spectral reshaping for reference signal
Kai Chen, Kai Chen, Roshun Paurobally, Roshun Paurobally, Jie Pan, Jie Pan, Xiaojun Qiu, Xiaojun Qiu 
01 Jan 2015-Applied Acoustics
20 Citations
In this paper, an improved algorithm for active control of fan noise is proposed.
Open access•Journal Article•DOI
Noise Generated by Low Pressure Axial Fans
Yasutoshi Senoo, Yoshio Kodama 
01 Dec 1973-Jsme International Journal Series B-fluids and Thermal Engineering
10 Citations
Therefore, the noise observeda way from a low pressure axial flow fan is mostly the turbulent noise.
Proceedings Article•DOI
Development and application of a new procedure for fan noise prediction
Antoine Moreau, Sebastien Guerin 
07 Jun 2010
15 Citations
Furthermore the acoustic output at the presence of parameter variations provides guidelines for the design-to-noise of fan components.
Journal Article•DOI
Development of high-performance and low-noise axial-flow fan units in their local operating region
Seung Heo, Minho Ha, Tae-Hoon Kim, Cheolung Cheong 
12 Sep 2015-Journal of Mechanical Science and Technology
11 Citations
The noise emission from the household refrigerator is also found to be lessened when the new fan units are installed.
Proceedings Article•DOI
The effect of throttling on forward radiated fan noise
P. R. Gliebe
01 Mar 1979
10 Citations
The results of this study have an important bearing on estimating the noise characteristics of new fan designs from scaling the measured characteristics of previously tested fans.
Journal Article•DOI
Numerical calculation of centrifugal fan noise
Q Liu, Datong Qi, Yijun Mao 
01 Aug 2006
54 Citations
The method described and applied in this work provides a good qualitative prediction of the noise generation when designing a new fan, thus facilitating the choice of the lowest noise fan from several feasible alternatives.
Proceedings Article•DOI
Numerical Simulation of the Downstream Fan Noise and Jet Noise of a Coaxial Jet with a Shielding Surface
Stephane Redonnet, Eric Manoha, Owen Kenning 
10 May 2004
18 Citations
A comparative study shows that the potential acoustic shielding effect is less favourable to the jet noise than to the downstream fan noise.

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