右转弯车辆与直线行驶车辆气动特性研究

Proceedings of The 6th International Conference on Innovation in Science and Technology Pub Date : 2023-03-01 DOI:10.56397/ist.2023.03.05

Hongtao Tang, Daoxian Tong, Xiang Zhang, Honglin Chen, N. Zhou

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引用次数: 0

摘要

利用计算流体动力学(CFD)中的动态网格技术，对右转车辆和直线行驶车辆的瞬态超车过程进行了仿真。得到了模型周围流场的特征以及侧向力和偏航力矩的变化趋势。研究表明:当直行车辆的速度增大时，其侧向力和两车的偏航力矩均增大，而右转车辆的侧向力先增大后减小;右转弯车辆的转弯半径增大，两车的侧向力和直线车辆的偏航力矩线性减小，右转弯车辆的偏航力矩线性增大。

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Study on Aerodynamic Characteristics Between Right Turning Vehicles and Straight Running Vehicles

The dynamic meshing technology in computational fluid dynamics (CFD) is used to simulate the transient overtaking process of right turning vehicles and straight running vehicles. The characteristic of flow field around the vehicle model and the variation trend of lateral force and yawing moment are obtained. The research shows that when the speed of the straight vehicle increases, its lateral force and the yawing moment of both vehicles increase, while the lateral force of the right turning vehicle increases first and then decreases; The turning radius of the right turning vehicle increases, the lateral force of the two vehicles and the yawing moment of the straight vehicle decrease linearly, and the yawing moment of the right turning vehicle increases linearly.

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Proceedings of The 6th International Conference on Innovation in Science and Technology

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