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Direct Simulation for Aerodynamic Noise from Vehicle Parts
Technical Paper
2007-01-3461
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Flows around a forward facing step and a fence are simulated on structured grid to estimate aerodynamic noise by using direct simulation. Calculated results of sound pressure level show quantitatively good agreement with experimental results. To estimate aerodynamic noise from 3D complex geometry, a simplified side mirror model is also calculated. Averaged pressure distribution on the mirror surface as well as pressure fluctuations on the mirror surface and ground are simulated properly. However, calculated result of sound pressure level at a location is about 20dB higher than experiment due to insufficient spatial resolution. To capture the propagation of sound waves, more accuracy seems to be required.
Authors
Citation
Hamamoto, N., Yoshida, M., Goto, Y., Hashimoto, A. et al., "Direct Simulation for Aerodynamic Noise from Vehicle Parts," SAE Technical Paper 2007-01-3461, 2007, https://doi.org/10.4271/2007-01-3461.Also In
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