旋转车轮对汽车外部复杂流场的影响

车轮影响着整个汽车的外流场特性，车体周围的流场由于旋转车轮的存在而复杂化。通过对带有车轮的汽车模型进行数值模拟计算．比较无车轮、静止车轮和旋转车轮的计算结果，得到旋转车轮对汽车的尾涡结构、气动阻力和气动升力有重要影响。车轮在汽车外部复杂流场的数值计算中不能被忽略。

Effect of the Rotating Wheel on Flow Field around Automobile

The wheels have an important effect on the whole flow field,the flow field around a car become complex because the exist of rotating wheel.In this paper,simulations on the complete structure with the wheels were given, compare the results of without wheel ,static wheel and rotating wheel,it shows that the wheels have great contribution on the wake structure, aerodynamic drag and lift wake structure of the autos.Wheels can not be neglected when simulating the complex flow field around a car.