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Lessons Learned from a Full-Scale Real World Wind Noise Modeling Project
Technical Paper
2009-01-0185
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Wind noise consistently ranks as one of the most influential factors with respect to perceived vehicle quality. In an effort to address this issue we investigated building, solving, and analyzing a CFD (Computational Fluid Dynamics) wind noise model using LES (Large Eddy Simulation) turbulence modeling. An experimental and numerical study of the effect of an actual sunroof deflector that was in place or removed from the vehicle was conducted. The combined effects of a relatively small mesh size and time step to capture the transient flow phenomena and a large number of time steps to insure valid comparisons with typical experimental results, led to extremely large solution times and a subsequent large amount of data to analyze. While good results were obtained, the practical use of this type of analysis in a development timeline was determined to be limited.
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Citation
Ramsay, T. and Boh, A., "Lessons Learned from a Full-Scale Real World Wind Noise Modeling Project," SAE Technical Paper 2009-01-0185, 2009, https://doi.org/10.4271/2009-01-0185.Also In
References
- Sovani, S. Lokhande, B. “Computational Aeroacoustic Analysis of a Generic Side View Mirror” SAE 2003-01-1698 2003
- Sovani, s. Chen, K-H. “Aeroacoustics of an Automotive A-Pillar Rain Gutter” SAE 2005-01-2492 2005
- Walter, J. Duell, E. Martindale, B. Arnette, S. Nagle, P. Gulker, W Wallis, S Williams, J. "The Driveability Test Facility Wind Tunnel No." 8 SAE 2001-01-025 2001
- Brentner Kenneth S. "A Superior Kirchhoff Method for Aeroacoustic Noise Prediction: The Ffowcs Williams-Hawkings Equation", San Diego, California, 134th Meeting of the Acoustical Society of America 1997