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Y. Bi¹, H. Bi², H. Wang¹ and W. Luo¹

¹School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, China
²Research Center for Super-High-Speed Evacuated Tube Maglev Transport, Southwest Jiaotong University, Chengdu, China

doi:10.4203/ccc.15.11.10

Y. Bi, H. Bi, H. Wang, W. Luo, "Numerical Studies on Aerothermal Characteristics and Mitigation Strategies for Vacuum Tube Transportation", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 11.10, 2026, doi:10.4203/ccc.15.11.10

Keywords: vacuum tube, maglev train, ultra-high-speed, aerodynamic heat, thermal environment, shock wave.

Abstract

The Vacuum Tube Maglev Transportation System, as a crucial development trend in the future transportation sector, has a special enclosed environment that renders the thermal environment within the tube highly complex and even endangers operational safety. Thus, an investigation into the formation mechanisms of aerodynamic heat provides technical support for its engineering application. This paper studies aerodynamic heat using the Shear Stress Transport k-? model, combined with the dynamic mesh technique. To mitigate the transient aerodynamic heating caused by train operation, an aerodynamic heating mitigation scheme based on the heat dissipation method of cold radiant panels is proposed, and the mitigation effect of the cold radiant panel area on transient aerodynamic heating is discussed. The key result is that when the cold radiant panels are fully laid along the entire length of the tube, the maximum temperature on the train surface is 12.4 ? lower than that without the cold radiant panels.

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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: 15 PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 11.10 Numerical Studies on Aerothermal Characteristics and Mitigation Strategies for Vacuum Tube Transportation Y. Bi¹, H. Bi², H. Wang¹ and W. Luo¹ ¹School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, China ²Research Center for Super-High-Speed Evacuated Tube Maglev Transport, Southwest Jiaotong University, Chengdu, China doi:10.4203/ccc.15.11.10 Full Bibliographic Reference for this paper Y. Bi, H. Bi, H. Wang, W. Luo, "Numerical Studies on Aerothermal Characteristics and Mitigation Strategies for Vacuum Tube Transportation", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 11.10, 2026, doi:10.4203/ccc.15.11.10 Keywords: vacuum tube, maglev train, ultra-high-speed, aerodynamic heat, thermal environment, shock wave. Abstract The Vacuum Tube Maglev Transportation System, as a crucial development trend in the future transportation sector, has a special enclosed environment that renders the thermal environment within the tube highly complex and even endangers operational safety. Thus, an investigation into the formation mechanisms of aerodynamic heat provides technical support for its engineering application. This paper studies aerodynamic heat using the Shear Stress Transport k-? model, combined with the dynamic mesh technique. To mitigate the transient aerodynamic heating caused by train operation, an aerodynamic heating mitigation scheme based on the heat dissipation method of cold radiant panels is proposed, and the mitigation effect of the cold radiant panel area on transient aerodynamic heating is discussed. The key result is that when the cold radiant panels are fully laid along the entire length of the tube, the maximum temperature on the train surface is 12.4 ? lower than that without the cold radiant panels. download the full-text of this paper (PDF, 1479 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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