PDF (Español (España))
FLIP
The Revista Guillermo de Ockham provides an immediate and open access to its content, based on the principle of offering the public a free access to investigations to provide a global interchange of knowledge.
Unless otherwise established, the contents of this journal has a license with Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) http://creativecommons.org/licenses/by-nc-nd/4.0/
- Attribution: You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial: You may not use the material for commercial purposes.
- NoDerivatives: If you remix, transform, or build upon the material, you may not distribute the modified material.
- No additional restrictions: You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Abstract
In this article, the aerodynamic behavior of a commuter train operating at average speeds is evaluated, by means of computational fluid dynamics; the main goal is to identify the main aerodynamic drag sources. The study consist of two phases; the first one is the aerodynamic analysis of the current train using certain mesh parameters and the turbulence model – to obtain a real condition of operation, with this analysis was obtained the total power consumption corresponding to the value of the aerodynamic drag thrown by the simulation process. These results were qualitatively compared with experimental data in order to validate the simulation process. The second part is the identification and analysis of the main aerodynamic drag zones that the Metro system generate in its interaction with the air, to make a preliminary evaluation of a few modifications that allowed the reduction in the drag in these critical
References
AUGUSTIN, Kai, RIST, Ulrich, and WAGNER, Siegfried. (2012) Control of Laminar Separation Bubbles by Small-Amplitude 2D and 3D Boundary-Layer Disturbances. Universität Stuttgart; Institut für Aerodynamik und Gasdynamik, Pfaffenwaldring 21, 70550 Stuttgart, Germany.
BAKER, Chris. (2010) The flow around high speed trains. Journal of Wind Engineering and Industrial Aerodynamics 98 277–298.
BAKER, Chris. (2010) The simulation of unsteady aerodynamic cross wind forces on trains. Journal of Wind Engineering and Industrial Aerodynamics 98 88–99.
BEAUDOINA, J.F., CADOTB, O., AIDERC, J.L., and WESFREID, J.E. (2006) Bluff-body drag reduction by extremum-seeking control. Journal of Fluids and Structures 22 973–978.
CHELI, F., RIPAMONTI, F., ROCCHI, D., and TOMASINI, G. (2010) Aerodynamic behavior investigation of the new EMUV 250 train to cross wind. Journal of Wind Engineering and Industrial Aerodynamics 98 189–201.
LAM, K. M and WEI, C. T. (2010) Numerical simulation of vortex shedding from an inclined flat plate. Engineering Applications of Computational Fluid Mechanics Vol.45, No.4, pp 569-579.
LIENHART, Hermann, BREUER, Michael, and and KÖKSOY, Cagatay. (2008) Drag reduction by dimples? – A complementary experimental/numerical investigation. International Journal of Heat and Fluid Flow 29 783–791.
ORTEGA, Jason M. and SALARI, Kambiz. (2005) Apparatus and method for reducing drag of a bluff body in ground effect using counter-rotating vortex pairs. United States Patent.
RAGHUNATHANA, S. RAGHU, Kimb, H.-D., and SETOGUCHIC, T. (2002) Aerodynamics of high-speed railway train. Progress in Aerospace Sciences 38 469–514.
SALARI, Kambiz, et al. (2006) Heavy Vehicle Drag Reduction Devices: Computational Evaluation & Design. DOE Heavy Vehicle Systems Review.
ÜNAL, Ugur Oral and GÖREN Ömer. (2011) Effect of vortex generators on the flow around a circular cylinder: Computational investigation with two-equation turbulence models. Engineering Applications of Computational Fluid Mechanics Vol. 5, No.1, pp 99-116.
WOOD, Richard M., y BAUER, Steven X. S. (2003) Simple and Low-Cost Aerodynamic Drag Reduction Devices for Tractor-Trailer Trucks. SOLUS – Solutions and Technologies.
Downloads
Cited by
