同济大学学报（自然科学版）2021，Vol.49Issue(z1)：20-27,8.DOI:10.11908/j.issn.0253-374x.22730
一种新数值工具在车辆气动声学开发中的应用
Application of a Newly Implemented Numerical Tool for Aeroacoustic Vehicle Development
PERUGINI Carlo Alberto 1ARZILLI Gilberto 2TORLUCCIO Antonio 2BLUMRICH Reinhard 1WAGNER Andreas1
作者信息
- 1. Research Institute of Automotive Engineering and Vehicle Engines Stuttgart-FKFS,斯图加特70596,德国
- 2. Automobili Lamborghini S.p.A.,圣亚加塔·波隆尼40019,意大利
- 折叠
摘要
Abstract
Nowadays, the implementation and application of numerical methodologies for aeroacoustic analysis become increasingly essential for car manufacturers in order to optimize the effectiveness of the vehicle development process. In this paper, a hybrid numerical tool based on the combination of a delayed detached eddy simulation and a finite element model was presented. The finite element model in turn was based on Lighthill's equation and acoustic perturbation equations. The computational fluid dynamics and the computational aeroacoustics were respectively performed by the software OpenFOAM and Actran. The aeroacoustic behavior of the SUV Lamborghini Urus using different roof spoiler designs was investigated. The numerical simulations were verified against the experimental measurements conducted in the aeroacoustics full scale wind tunnel of the University of Stuttgart operated by FKFS. Furthermore, the main noise generation mechanisms at the spoiler were discussed and the change of pressure fluctuation level on the car surface with respect to a geometry variation was investigated.关键词
车辆气动声学/计算气动声学/风噪/车辆舒适性Key words
vehicle aeroacoustics/computational aeroacoustics/wind noise/vehicle comfort分类
交通工程引用本文复制引用
PERUGINI Carlo Alberto,ARZILLI Gilberto,TORLUCCIO Antonio,BLUMRICH Reinhard,WAGNER Andreas..一种新数值工具在车辆气动声学开发中的应用[J].同济大学学报（自然科学版）,2021,49(z1):20-27,8.
