客车车身外气动性能的CFD研究

CFD study on aerodynamic performance outside bus body

介绍了应用CFD技术对多种客车车身外气动性能的研究,阐述了气流的绕流特性和尾流特性对客车车身的外气动性能影响。提出平缓弧线过渡车头、大半径边缘前风窗玻璃的采用、导雨槽Z向段的减短、车顶结构远离车尾等设计方法的应用改善了客车附近的流场状态。

It introduces the study of CFD technology application to aerodynamic performance for various bus bodies, and expounded the influence of the flow around the air flow and the wake characteristics on the external aerodynamic performance of the bus body. The application of the design methods such as the fiat arc transition head, the large radius edge front windscreen, the reduction of the Z section of the rain guide trough and the roof structure away from the rear of the bus improve the flow field state near the bus.