It was found that it is feasible to use CFD to simulate the transient aerodynamic phenomenons and the aerodynamic coefficients of the cars change sharply like sinusoidal functions.

• 研究结果表明：对汽车进行瞬态空气动力学数值模拟是可行的；两车在会车前后的一段时间内气动力系数会有急剧的变化，有类似正弦函数形状的变化曲线；