NDLI: Hybrid CFD/FEM-BEM simulation of cabin aerodynamic noise for vehicles traveling at high speed

Content Provider	Springer Nature Link
Author	Wang, YiPing Zhen, Xin Wu, Jing Gu, ZhengQi Xiao, ZhenYi Yang, Xue
Copyright Year	2013
Abstract	Flow passing a vehicle may lead to the increase of the cabin interior noise level through a variety of mechanisms. These mechanisms include vibrations caused by aerodynamic excitations and re-radiation from the glass panels, exterior noise transmitted and leaked through door seals including gaps and glass edge, and transmission of airborne noise generated by the interaction of flow with body panels. It is of vital importance to predict both the flow fields and the acoustic sources around the vehicle to accurately assess the impact of wind induced noise inside the cabin. In the present study, an unstructured segregated finite volume model was used to calculate the flow fields in which a hexahedron grid is used to simplify the vehicle geometry. A large eddy simulation coupled with a wall function model was applied to predict the exterior transient flow fields. The mean flow quantities were thus calculated along the symmetry plane and the vehicle’s side windows. A coupled FEM/BEM method was used to compute the vehicle’s interior noise level. The total contribution of the interior noise level due to the body panels of the vehicle was subsequently analyzed.
Starting Page	1697
Ending Page	1708
Page Count	12
File Format	PDF
ISSN	16747321
Journal	Science in China Series E: Technological Sciences
Volume Number	56
Issue Number	7
e-ISSN	18691900
Language	English
Publisher	SP Science China Press
Publisher Date	2013-05-08
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	aerodynamic noise computational fluid dynamics large eddy simulation finite element method boundary element method Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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