机械科学与技术2026，Vol.45Issue(8)：1341-1348,8.DOI:10.13433/j.cnki.1003-8728.20240160
重型集装箱卡车拖车轮胎周围气流管理研究
Airflow Management Around Trailer Tires of Heavy Container Truck
摘要
Abstract
Due to the structural characteristics such as multiple axles,small wheelbase and double wheels,the structural-aerodynamic behavior around the tires of heavy container truck is extremely complex,which will have a very large negative impact on the aerodynamic characteristics and economy of the vehicle.The steady-state Realizable k-ε model is used to establish the vehicle aerodynamic model and carry out experimental verification.By analyzing the airflow field of the trailer tire of the existing heavy container truck,the structure of the covering parts around the trailer tire is modified based on airflow management objectives,and the difference of the airflow field before and after the structure improvement is compared.The results show that before the improvement,the air vortex appears around the tire of the trailer,and strong air turbulence is formed around the tire.The air pressure around the tire of the trailer fluctuates greatly,and a large scale drag vortex is formed after the coupling of the lateral incoming flow and the outflow flow at the wheel edge.After the improvement,the air flow around the trailer tire flows along the longitudinal symmetrical plane of the vehicle,the air flow is relatively stable,the air vortex around the tire is notably suppressed,the air pressure and pressure fluctuation amplitude near the trailer tire are reduced,the scale of the drag vortex outside the tire is significantly reduced,the vehicle resistance coefficient is reduced by 11.33%,and the fuel consumption per 100 kilometers is reduced by 3.45%.关键词
轮胎/气流管理/覆盖件/漩涡/阻力系数Key words
tire/air flow management/covering parts/vortex/drag coefficient分类
矿业与冶金引用本文复制引用
施恒,任睿,蒋维琦,杜龙飞,刘家昌,黄海波..重型集装箱卡车拖车轮胎周围气流管理研究[J].机械科学与技术,2026,45(8):1341-1348,8.基金项目
国家自然科学基金项目(52475198,51975300)、国家环境保护机动车污染控制与模拟重点实验室开放基金项目及浙江省自然科学基金项目(LTGS24E050001) （52475198,51975300）
