Review of computational aeroacoustics for application in electronics cooler noise

Authors

  • Jeff Defoe Dept. of Mechanical, Automotive and Materials Engineering, University of Windsor, 401 Sunset Ave., Windsor, Ont. N9B 3P4, Canada
  • Colin Novak Dept. of Mechanical, Automotive and Materials Engineering, University of Windsor, 401 Sunset Ave., Windsor, Ont. N9B 3P4, Canada

Keywords:

Acoustic noise, Boundary element method, Computer simulation, Heat sinks, Natural frequencies, Numerical analysis, Acoustic phenomena, Axial fans, Electronics cooler noise

Abstract

A review of computational aeroacoustics (CCA) was made for application in electronics cooler noise. Computational aeroacoustics encompasses all numerical methods where the purposes is to predict the noise emissions from a simulated flow. Numerical simulation of the flow inside and around heat sinks and fans can lead to a prediction of the emitted noise while they are still in the design phase. Direct CCA is theoretically the best way to predict flow-based acoustic phenomena numerically. It is typically used only for low-frequency sound prediction. The boundary element method offers low computational cost and does not use a computational grid, but instead use vortex-surface calculations to determine tonal noise. Axial fans are commonly used to increase the airflow and thus the heat transfer over the heat sinks within the computer cases. Very detailed source simulations in the fan and heat sink region coupled with the use of analogy methods could result in excellent simulation results with a reasonable computational effort.

Published

2006-09-01

How to Cite

1.
Defoe J, Novak C. Review of computational aeroacoustics for application in electronics cooler noise. Canadian Acoustics [Internet]. 2006Sep.1 [cited 2021May13];34(3):76-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1829

Issue

Section

Proceedings of the Acoustics Week in Canada

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