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- W2766898081 abstract "The focus of this study was the influence of the length of a train on its aerodynamic performance, with and without wind break walls, under a crosswind. The improvement in the train’s aerodynamic performance due to a wind break wall was also analyzed. Aerodynamic coefficients such as the drag force and lateral force were obtained for trains of different lengths using a numerical simulation. A delayed detached eddy simulation based on the shear-stress transport κ–ω turbulent model was used in Fluent 14.0 to simulate the unsteady aerodynamic performances of trains of different lengths under a crosswind. Through a comparison and analysis of the simulation results, the effects of the train length on the forces, pressure, and flow structure around the train were studied, along with the influence of a wind break wall on trains of different lengths. The results showed that the effects on the forces, pressure, and flow structure were focused in the region around the train tail. Furthermore, it was found that a wind break wall could improve the aerodynamic characteristics of a train under a crosswind, but amplified the influence of the train length on the aerodynamic performance of the train tail. These research results provide useful guidance for train operations under a crosswind." @default.
- W2766898081 created "2017-11-10" @default.
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- W2766898081 date "2017-11-01" @default.
- W2766898081 modified "2023-10-14" @default.
- W2766898081 title "Numerical investigation of the aerodynamic characteristics of high-speed trains of different lengths under crosswind with or without windbreaks" @default.
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- W2766898081 doi "https://doi.org/10.1080/19942060.2017.1390786" @default.
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