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Evaluation of Aerodynamic Noise Generated in Production Vehicle Using Experiment and Numerical Simulation
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Ye Li, Takashi Kamioka, Takahide Nouzawa, Takaki Nakamura, Yoshihiro Okada Mazda Motor Corporation Nariyoshi Ichikawa Japan Advanced Institute of Science and Technology
Abstract
Aerodynamic noise generated in production vehicle has been evaluated using experiment and numerical simulation. Finite difference method (FDM) and finite element method (FEM) are applied to analyze the flow field, and Lighthill’s analogy is employed to conduct acoustic analysis. The flow fields around front-pillar obtained by numerical simulations agree with those by experiment for two cases with different front-pillar shape. Moreover, the distribution of acoustic source predicted by FEM is consistent with that obtained by experiment. Present study ascertained the feasibility and applicability of FEM with SGS model towards prediction of aerodynamic noise generated in production vehicle.
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Society of Automotive Engineers, Inc.
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