Official PDF Translation•Journal of Central South University

A novel leeward airbag for enhancing aerodynamic characteristics of a high-speed train in crosswind: The effect of installation positions

Authors: XU Ao; HUANG Feng-yi; LIU Tang-hong; XIONG Xiao-hui

DOI: 10.1007/s11771-025-6050-zStatus: Verified Translated Edition

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Key Findings in This Report

• Leeward airbags significantly reduce lateral force and overturning moment coefficients, enhancing crosswind safety. • The top-mounted airbag (Model III) yields the best performance: lateral force coefficient reduced by 16.71% and overturning moment coefficient by 23.65%. • Airbags alter surface pressure distribution on the leeward side, improving aerodynamic stability. • Findings offer a novel passive aerodynamic solution for next-generation high-speed trains.