【作者】 刘学龙； 高岳； 杨彬；

【Author】 Liu xuelong;Gao yue;Yang bin;China Automotive Technology&Research Center;Hefei University of Technology;

【机构】 中国汽车技术研究中心； 合肥工业大学；

【摘要】 本文利用计算流体力学软件STAR-CCM+对某车型进行了整车空气动力学CFD计算,在验证模型可信性后,通过方针计算得到并对比了不同格栅开度下汽车风阻、发动机舱压力场、速度流场分布情况,分析了风阻及散热器进气量随格栅叶片开度变化的趋势,根据样车在不同工况下的实际情况与需要选择了较为合理的格栅叶片开启角度控制方案。最后对不同工况下的格栅叶片开度方案进行了验证分析,证实了格栅叶片控制方案的可行性。更多还原

【Abstract】 The computational fluid dynamics software STAR-CCM+ on the vehicle by the vehicle aerodynamics calculation by using CFD,in the validation of the model through the policy credibility,calculated and compared the different grille opening car nacelle wind resistance,pressure field,velocity field distribution,analysis of wind resistance and radiator air intake grille with blade opening change the trend,according to the actual situation and the needs of vehicle under different working conditions choose reasonable grille blades opening angle control scheme.At last,the feasibility of the control scheme is verified by the analysis of the grid blade opening scheme under different working conditions.更多还原