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J. Sun^1,2, M.-Z. Yang¹, L. Zhang¹, W.-X. Teng³ and G. Chen²

¹School of Traffic and Transportation Engineering, Central South University, Changsha, China
²Aerodynamics Research Group, CRRC CHANGCHUN GERMANY RailTech GmbH, Aachen, Germany
³Railway Vehicle System Integration Laboratory, CRRC Changchun Railway Vehicles Co., Ltd, ChangChun, China

doi:10.4203/ccc.7.3.21

J. Sun, M.-Z. Yang, L. Zhang, W.-X. Teng, G. Chen, "Influence of Strong Wind on the Aerodynamic Characteristics of the High-Speed Maglev Train", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 3.21, 2024, doi:10.4203/ccc.7.3.21

Keywords: strong wind, maglev train, aerodynamic characteristics, high speed train, flow structures, delayed detached eddy simulation.

Abstract

The increasing demand for high-speed transportation has led to the successive development and building of high-speed maglev transportation systems by Germany, Japan, the United States, and China. Though the design speed of the high-speed maglev train has been increased to 600 km/h, however, the degree of deterioration of their aerodynamic characteristics under strong winds has not been studied because of its high speed and different operation modes compared to wheel rail trains. In this study, the delayed detached eddy simulation method is used to simulate the flow field around the maglev train under strong wind, and the characteristics of flow field around the maglev train and the influence of aerodynamic force on the maglev train under different wind conditions are studied. The results show that with the deterioration of the wind condition, the drag, lift and side force of the head car and tail car of the maglev train change. Furthermore, an increase in strong winds causes the flow field asymmetry and vortex intensity around the train to increase, resulting in further fluctuations of the aerodynamic characteristics of the train.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 3.21 Influence of Strong Wind on the Aerodynamic Characteristics of the High-Speed Maglev Train J. Sun^1,2, M.-Z. Yang¹, L. Zhang¹, W.-X. Teng³ and G. Chen² ¹School of Traffic and Transportation Engineering, Central South University, Changsha, China ²Aerodynamics Research Group, CRRC CHANGCHUN GERMANY RailTech GmbH, Aachen, Germany ³Railway Vehicle System Integration Laboratory, CRRC Changchun Railway Vehicles Co., Ltd, ChangChun, China doi:10.4203/ccc.7.3.21 Full Bibliographic Reference for this paper J. Sun, M.-Z. Yang, L. Zhang, W.-X. Teng, G. Chen, "Influence of Strong Wind on the Aerodynamic Characteristics of the High-Speed Maglev Train", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 3.21, 2024, doi:10.4203/ccc.7.3.21 Keywords: strong wind, maglev train, aerodynamic characteristics, high speed train, flow structures, delayed detached eddy simulation. Abstract The increasing demand for high-speed transportation has led to the successive development and building of high-speed maglev transportation systems by Germany, Japan, the United States, and China. Though the design speed of the high-speed maglev train has been increased to 600 km/h, however, the degree of deterioration of their aerodynamic characteristics under strong winds has not been studied because of its high speed and different operation modes compared to wheel rail trains. In this study, the delayed detached eddy simulation method is used to simulate the flow field around the maglev train under strong wind, and the characteristics of flow field around the maglev train and the influence of aerodynamic force on the maglev train under different wind conditions are studied. The results show that with the deterioration of the wind condition, the drag, lift and side force of the head car and tail car of the maglev train change. Furthermore, an increase in strong winds causes the flow field asymmetry and vortex intensity around the train to increase, resulting in further fluctuations of the aerodynamic characteristics of the train. download the full-text of this paper (PDF, 16 pages, 1267 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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