Automotive Aerodynamics Development Based on Shape Optimization Method

被引：0
|
作者：
Lian Y. [1 ]
Luo Q. [1 ]
Zhang F. [1 ]
Zhang R. [1 ]
Zhang Y. [1 ]
机构：
[1] BYD Auto Industry Company Limited, Shenzhen
来源：
Qiche Gongcheng/Automotive Engineering | 2022年 / 44卷 / 10期
关键词：
aerodynamics; electric tail spoiler; shape optimization; vehicles; wind drag; wind tunnel test;
D O I：
10.19562/j.chinasae.qcgc.2022.10.017
中图分类号：
学科分类号：
摘要：
Based on the Isight optimization platform and by integrating the Sculptor mesh deformation algorithm and the computational fluid dynamics simulation technique，a vehicle aerodynamic shape optimization method with multi-parameter and multi-objectives is developed. Under the given vehicle size constraints and based on the low drag shape of BYD’s Han EV，the effects of seven outer contour parameters on aerodynamic drag are investigated，leading to a drag reduction of 4.2 counts. Furthermore，an aerodynamic optimization on the electric tail spoiler is carried out by using the shape optimization method with the optimal shape combination of multi-objective aerodynamic parameters studied，an electric tail spoiler with optimum shape and posture is obtained，resulting in a total drag reduction of 6 counts and a real-axle lift force reduction of 52 counts in the end. Finally，the effectiveness and reliability of the shape optimization method adopted are verified by wind tunnel test. © 2022 SAE-China. All rights reserved.
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页码：1619 / 1626
页数：7
相关论文
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