Numerical investigation of aerodynamic characteristics of high speed train

Syed Mohamed Ali, Jaffar and Omar, Ashraf Ali and Ali, Muhammad Atif and Mohd Baseair, Abdul Rahman (2017) Numerical investigation of aerodynamic characteristics of high speed train. In: 3rd International Conference on Mechanical, Automotive and Aerospace Engineering, ICMAAE 2016, 25th-27th July 2016, Kuala Lumpur, Malaysia.

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Abstract

In this work, initially the effect of nose shape on the drag characteristics of a high speed train is studied. Then the influence of cross winds on the aerodynamics and hence the stability of such modern high speed trains is analyzed. CFD analysis was conducted using STAR-CCM+ on trains with different features and important aerodynamic coefficients such as the drag, side force and rolling moment coefficients have been calculated for yaw angles of crosswinds ranging from 0° to 90°. The results show that the modification on train nose shape can reduce the drag up to more than 50%. It was also found that, bogie faring only reduces small percentage of drag but significantly contributed to higher rolling moment and side force coefficient hence induced train instability.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	4262/57494
Uncontrolled Keywords:	Numerical investigation, aerodynamic characteristics, high speed train
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr Mohamed Ali Jaffar Syed
Date Deposited:	07 Jul 2017 11:19
Last Modified:	01 Nov 2017 11:32
URI:	http://irep.iium.edu.my/id/eprint/57494

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