【摘要】 汽车空气动力学特性对汽车经济性、驾驶安全性、侧风稳定性等有着较大的影响。通过反求方法在UG中建立某车型的车身几何造型,基于ANSYS的CFD的有限元仿真环境对该车的空气动力学特性进行了数值模拟仿真研究,得出该车体的速度矢量图、压力分布图等,并根据模拟仿真结果对汽车的气动造型提出一些建议,为优化汽车车型及改善汽车空气动力学特性提供参考。更多还原

【Abstract】 The car aerodynamics characteristic has obvious effects on the economics,safety of driving and stability of side wind. It the car body model is built by the reverse engineer method in UG environment,and the speed vector and air-pressure distribute are deduced by the numerical simulation of aero-dynamic characters by the CFD module of Ansys. In addition,the suggestions of car aero-dynamic styling are put forwards and helpful for the improving the car model and aero-dynamic characters.更多还原