A Computational Process for Early Stage Assessment of Automotive Buffeting and Wind Noise

被引：12
|
作者：
Balasubramanian, Ganapathi [1 ]
Mutnuri, L. A. Raghu [1 ]
Sugiyama, Zen [1 ]
Senthooran, Sivapalan [1 ]
Freed, David [1 ]
机构：
[1] Exa Corp, Burlington, MA 01803 USA
来源：
SAE INTERNATIONAL JOURNAL OF PASSENGER CARS-MECHANICAL SYSTEMS | 2013年 / 6卷 / 02期
关键词：
D O I：
10.4271/2013-01-1929
中图分类号：
U [交通运输];
学科分类号：
08 ; 0823 ;
摘要：
A computational process for early stage vehicle shape assessment for automotive front window buffeting and greenhouse wind noise is presented. It is a challenging problem in an experimental process as the vehicle geometry is not always finalized. For example, the buffeting behavior typically worsens during the vehicle development process as the vehicle gets tighter, leading to expensive late counter measures. We present a solution using previously validated CFD/CAA software based on the Lattice Boltzmann Method (LBM). A CAD model with realistic automotive geometry was chosen to simultaneously study the potential of different side mirror geometries to influence the front window buffeting and greenhouse wind noise phenomena. A glass mounted mirror and a door mounted mirror were used for this comparative study. Interior noise is investigated for the two phenomena studied. The unsteady flow is visualized and changes in the buffeting and wind noise behavior are explored.
引用
收藏
页码：1231 / 1238
页数：8
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