By Wenzheng Liu, Zhongping Yang, Zhaofeng Gong (auth.), Yi-Qing Ni, Xiao-Wei Ye (eds.)
This e-book includes the papers incorporated within the complaints of the first foreign Workshop on High-speed and Intercity Railways (IWHIR 2011) held in Shenzhen and Hong Kong, China from July 19 to July 22, 2011, that is prepared by way of The Hong Kong Polytechnic college, in collaboration with Southwest Jiaotong college, Beijing Jiaotong collage, Dalian Jiaotong collage, China Engineering experts, Inc., Zhejiang collage, and Tsinghua collage. carrying on with the good projects and momentums of the fast improvement in high-speed and intercity railways around the world in recent times, IWHIR 2011 goals at offering a platform for tutorial students and training engineers to percentage wisdom and event, to advertise collaboration, and to reinforce R&D actions concerning railway engineering. Engineers, scientists, professors, and scholars from universities, examine institutes, and comparable commercial businesses were cordially invited to take part within the workshop. those papers have coated quite a lot of matters pertaining to high-speed and intercity railways within the theoretical, numerical, and experimental paintings referring to high-speed and intercity railways. Showcasing variety and caliber, those papers file the cutting-edge and aspect to destiny instructions of study and improvement during this interesting area.
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Erodynamics of high-speed trains. : Aerodynamic behavior investigation of the new EMUV250 train to cross wind. : Integrative method of design and manufacture on streamlined head of train. : Crosswind stability of a high-speed train on a high embankment. Proc. Instn Mech. Engrs, Part F: J. Rail. and Rapid Transit. : A study on the aerodynamic characteristics of a high speed train entering a tunnel and frontal shape optimization. JKSAS 26(1), 17–26 (1998) Investigation of Aerodynamic Performance of High-Speed Train by Detached Eddy Simulation Hongwei Zheng and Guowei Yang Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China Abstract.
Int. J. : Aerodynamic Calculations of Crosswind Stability of a High-speed Train Using Control Volumes of Arbitrary Polyhedral Shape. : DNS of buoyancy-dominated turbulent flows on a bluff body using the immersed boundary method. : Accurate model reduction of transient and forced wakes. : Flow structure around trains under side wind conditions: a numerical study. : Large-eddy simulation of the flow around a freight wagon subjected to a crosswind. : Aerodynamic crosswind stability of a regional train model.
The wake field becomes more complex when the pantograph shroud is installed, as shown in Figure 2(b) and (c). Two vortices are generated on both sides of the pantograph shroud in case 2 and detach quickly from the shroud surface and extend to the wake field. These four vortices are steady and can make the wake field more disordered. The pantograph shroud in case 2 compresses the air and increases the speed of the air through the pantograph, so that the strength of eddies detaching from the shroud surface will increase a lot.