In this work, the real maglev train and tube are modeled. Considering the narrow suspension gap, the aerodynamic characteristics in evacuated tube transportation with and without tracks (referred to as WT and NT (no tracks), respectively) are simulated based on the SST k-$\omega$ two-equation IDDES turbulence model and overset mesh technology, the wave system distribution characteristics under the asymmetric model are revealed and the effects of tracks on flow and heat transfer are discussed. The results demonstrate that the existence of the tracks increases the piston region by 0.005 L (L represents the length of the train). Additionally, the tracks have a significant impact on the evolution of the wake vortex. The unstable vortices dissipate more energy and reduce the effect of the wave system in the WT case, resulting in a 0.024 L shorter wake region than in the NT. Besides, the tracks hardly affect the drag force coefficient. However, the tracks cause a more significant impact in the vertical direction, resulting in an up to 23.20% reduction of lift coefficient of the overall train in the NT model. In terms of aerodynamic heating, the effect of the tracks on the shock wave generated at the tail curve bottom is greater than the top surface.

在这项工作中，对真正的磁悬浮列车和管道进行了建模。考虑到狭窄的悬挂间隙，基于SST k -$\omega$利用二方程IDDES湍流模型和重叠网格技术，揭示了非对称模型下的波浪系统分布特征，讨论了轨迹对流动和传热的影响。结果表明，轨道的存在使活塞区域增加了 0.005 L（L代表列车的长度）。此外，轨道对尾涡的演变有重大影响。不稳定的涡流会耗散更多的能量并减少 WT 情况下波系统的影响，导致 0.024 L比 NT 更短的唤醒区域。此外，履带几乎不影响阻力系数。然而，轨道在垂直方向上造成了更显着的影响，导致NT模型中整列列车的升力系数降低了23.20%。在气动加热方面，履带对尾部曲线底部产生的冲击波的影响大于顶部表面。