College of Automotive and Mechanical Engineering;
Changsha University of Science&Technology;
Changsha 410076;
China;
Key Laboratory of Traffic Safety on Track of Ministry of Education;
School of Traffic&Transportation Engineering;
Central South University;
Changsha 410075;
China;
Joint International Research Laboratory of Key Technology for Rail Traffic Safety;
Central South University;
Changsha 410075;
China;
National&Local Joint Engineering Research Center of Safety Technology for Rail Vehicle;
Changsha 410075;
China;
High-speed train(HST); Low temperature; Aerodynamic characteristics; Cold region; Improved delayed detached eddy simulation(IDDES);