Numerical Simulations and Measurements of Mirror-Induced Wind Noise

Paper #:
  • 2009-01-2236

Published:
  • 2009-05-19
DOI:
  • 10.4271/2009-01-2236
Citation:
Lepley, D., Senthooran, S., Hendriana, D., and Frazer, T., "Numerical Simulations and Measurements of Mirror-Induced Wind Noise," SAE Int. J. Passeng. Cars – Mech. Syst. 2(1):1550-1562, 2009, doi:10.4271/2009-01-2236.
Pages:
13
Abstract:
The high cost and competitive nature of automotive product development necessitates the search for less expensive and faster methods of predicting vehicle performance. Continual improvements in High Performance Computing (HPC) and new computational schemes allow for the digital evaluation of vehicle comfort parameters including wind noise. Recently, the commercially available Computational Fluid Dynamics (CFD) code PowerFlow, was evaluated for its accuracy in predicting wind noise generated by an external automotive tow mirror. This was accomplished by running simulations of several mirror configurations, choosing the quietest mirror based on the predicted performance, prototyping it, and finally, confirming the prediction with noise measurements taken in an aeroacoustic wind tunnel. Two testing methods, beam-forming and direct noise measurements, were employed to correlate the physical data with itself before correlating with simulation. Results of the correlations build confidence in both simulation and experiment, and confirm the use of exterior noise measurements as a substitute characteristic for interior noise.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$26.00
Mail
$26.00
Members save up to 38% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2016-02-02
Training / Education
2013-02-20
Article
2016-03-04
Article
2015-12-22
Technical Paper / Journal Article
2003-10-27
Training / Education
2013-04-09
Training / Education
2011-04-12