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How can I test the fan noise on my laptop? 

Rotor (electric)
Noise
Impeller
Axial compressor
Turbulence

Answers from top 10 papers

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Papers (10)Insight
Journal Article•DOI
Prediction and measurement of axial flow fan aerodynamic and aeroacoustic performance in a split-type air-conditioner outdoor unit
Xifeng Zhao, Jinju Sun, Zhi Zhang 
01 May 2013-International Journal of Refrigeration-revue Internationale Du Froid
19 Citations
Both modified fan geometries are effective to reduce the noise but the flanging outer-edge blade is more effective.
Journal Article•DOI
Experimental study of the noise emission of personal computer cooling fans
Murray Hodgson, Isabella Li 
01 Sep 2006-Applied Acoustics
19 Citations
The results show that the noise emission of the Panaflo fan is directly related to the voltage and inversely related to the air-flow rate.
Book Chapter•DOI
Research on Whine Noise of Automotive Radiator Fan During Decelerating
Wei Li, Xiaoping Gong, Haifeng Xu 
01 Jan 2013
2 Citations
The results of the analysis and tests show the whine noise is mainly caused by the multiple resonances coincidentally between the excitations of the fan motor’s electromagnetic force and the vibration modes of the fan assembly simultaneously.
Journal Article•DOI
Numerical investigation of blade tip grooving effect on performance and dynamics of an axial flow fan
Xuemin Ye, Pengmin Li, Chunxi Li, Xueliang Ding 
15 Mar 2015-Energy
52 Citations
Grooved blade tips amplify the fan noise, so measures should be taken to control the noise.
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.
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.
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.
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.
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
Axial flow fan broad-band noise and prediction
Thomas Carolus, Marc Schneider, Hauke Reese 
20 Feb 2007-Journal of Sound and Vibration
94 Citations
The predicted effects of the ingested turbulence on the fluctuating blade forces and the fan noise compare favorably with experiments.

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