NDLI: Lateral aerodynamic performance and speed limits of double-deck container vehicles with different structures

Content Provider	Springer Nature Link
Author	Li, Yan fei Tian, Hong qi
Copyright Year	2012
Abstract	Based on 3D, steady N-S equations and k-ɛ turbulence model, Fluent was employed to do numerical simulation for lateral aerodynamic performance of 6-axis X2K double-deck container trains with two different loading forms, and speed limits of the freight trains were studied. The result indicates that under wind environment: 1) As for vehicles without and with cross-loaded structure, aero-pressure on the former is bigger, but air velocity around the latter is larger; 2) When sideslip angle θ=0°, the airflow is symmetry about train vertical axis; when θ>0°, the airflow is detached at the top of vehicles, and the air velocity increases above the separated line but decreases below it; 3) With θ increasing, the lateral force on the mid vehicle firstly increases but decreases as θ=75°; 4) When the 6-axis X2K flat car loads empty boxes of a 40 ft and a 48 ft at 120 km/h, the overturning wind speed is 25.19 m/s, and the train should be stopped under the 12th grade wind speed.
Starting Page	2061
Ending Page	2066
Page Count	6
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	19
Issue Number	7
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2012-07-01
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	numerical simulation 6-axis X2K flat car loading form lateral aerodynamic performance speed limit Metallic Materials Engineering
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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