摘要
为研究某轿车的侧风稳定性,利用稳态方法,分析不同强度侧风下整车的侧向气动特性,并在某一特定的侧风条件下,通过优化车身两侧表面结构参数,以提高整车侧向气动性能。通过运用网格自适应方法和集成仿真软件star ccm+进行试验设计,并构建近似模型探索以整车侧向气动性能为目标的车身两侧各结构参数的最佳组合。结果表明,轿车在不同强度侧风的影响下,车身周围流场会发生显著改变。通过优化车身两侧表面结构参数,明显地提高了轿车的侧向气动性能。
In order to study the crosswind stability of a car,the lateral aerodynamic characteristics of the vehicle under different strength side winds were analyzed based on the steady state method.Under certain specific crosswind conditions,by optimizing the surface structural parameters of the two sides of the vehicle body,the lateral aerodynamic performance of the vehicle was improved.The experimental design was carried out by using the grid adaptive method and the integrated simulation software star ccm+,and an approximate model was constructed to explore the optimal combination of structural parameters on both sides of the vehicle with the vehicle’s lateral aerodynamic performance as the goal.The results show that under the influence of different strength crosswinds,the flow field around the vehicle body changes significantly.By optimizing the structural parameters on both sides of the body,the lateral aerodynamic performance of the car is significantly improved.
作者
陆润明
廖抒华
覃紫莹
LU Run-ming;LIAO Shu-hua;QIN Zi-ying(College of Mechanical and Traffic Engineering,Guangxi University of Science and Technology,Liuzhou Guangxi 545000,China)
出处
《计算机仿真》
北大核心
2021年第3期56-62,共7页
Computer Simulation
基金
广西科学研究与技术开发重大专项计划资助(桂科重14122002-4)。
关键词
侧向稳定性
车身侧面结构
网格自适应
试验设计
近似模型
Lateral stability
Vehicle body side structure
Grid adaptive
Experimental design
Approximate model
作者简介
陆润明(1994-),男(汉族),广西贵港市人,硕士研究生,主要研究领域为汽车空气动力学;廖抒华(1960-),男(壮族),广西柳州市人,教授,硕士研究生导师,主要研究领域为车辆动力学;覃紫莹(1994-),女(壮族),广西来宾市人,硕士研究生,主要研究领域为汽车空气动力学。
