A STUDY ON THE AERODYNAMIC DRAG REDUCTION OF HIGH-SPEED TRAIN USING BOGIE SIDE FAIRING

J.S. Moon; S.W. Kim; H.B. Kwon

A STUDY ON THE AERODYNAMIC DRAG REDUCTION OF HIGH-SPEED TRAIN USING BOGIE SIDE FAIRING

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고속열차 대차 측면 페어링 적용을 통한 공기저항 저감 연구

Type: Academic journal

Author: J.S. Moon (한국철도기술연구원) S.W. Kim (한국철도기술연구원) H.B. Kwon (한국교통대학교)

Journal: Korean Society for Computational Fluids Engineering Journal of Computational Fluids Engineering Vol.19 No.1 KCI Accredited Journals

Published: 2014.3

Pages: 41 - 46 (6page)

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A STUDY ON THE AERODYNAMIC DRAG REDUCTION OF HIGH-SPEED TRAIN USING BOGIE SIDE FAIRING

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The aerodynamic drag of high-speed train has been calculated and the effect of bogie side fairing on the aerodynamic drag has been investigated. Computational Fluid Dynamics (CFD) simulation based on steady-state 3 dimensional Navier-Stokes equation has been conducted employing FLUENT 12 and the aerodynamic model of HEMU-430x, the Korean next generation high-speed train under development has been built using GAMBIT 2.4.6. Three types of bogie side fairing configuration, the proto-type without fairing, half-covered fairing to avoid the interference with the bogie frame and full-covered fairing have been adopted to the train model to compare the drag reduction effects of the bogie side fairing configurations and the numerical results yields that the bogie side fairing can reduce the aerodynamic drag of the 6-car trainset up to 7.8%. The aerodynamic drag coefficient of each vehicle as well as the flow structures around the bogie system have also been examined to analyze the reason and mechanism of the drag reduction by bogie side fairing.

#고속열차(High-speed Train) #주행저항(Resistance to Motion) #공기저항(Aerodynamic Drag) #대차 측면 페어링(Bogie Side Fairing) #전산유체역학(CFD)

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1. [학술대회논문] - Kwon, H.B / 2011 / Target and Implementation of Aerodynamic Drag Reduction for High-speed Train to Reach Up to 500km/h Running Speed / Proc. of KSR 2011 fall conference

2. [학술지(정기간행물)] - Peters, J.L / 1993 / Aerodynamics of very high speed trains and maglev vehicles: State of the art and future potential / Int. J. of Vehicle Design (Special Publication) : 3 ~

3. [학술대회논문] - Kwon, H.B / 2013 / Decomposition and reduction of aerodynamic drag of high-speed train / Proc. of the WCRR 2013

4. [학술지(정기간행물)] - Ido, A. / 2001 / Wind Tunnel Tests to Reduce Aerodynamic Drag f Trains by Smoothing the Under-floor Construction / Quarterly Report of RTRI 42 (2) : 94 ~ 97

5. [학술대회논문] - Mancini, G. / 2001 / Effects of experimental bogie fairings on the aerodynamic drag of the ETR 500 high speed train / Proc. of WCRR 2001

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