On the ground-vehicle induced flows and obstacle interaction for energy harvesting purposes

Mattana, A.; Salvadori, Simone; Morbiato, Tommaso; Borri, Claudio

doi:10.1016/j.jweia.2013.11.008

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A Computational Domain and Boundary Conditions1

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Cited by 5 publications

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“…The k − ω SST turbulence model has been chosen in this study, as it is known for its improved treatment of wall bounded flows over the standard k − model, offering a good compromise between accuracy, computational costs and numerical stability [22].…”

Section: A Computational Domain and Boundary Conditionsmentioning

confidence: 99%

Numerical Modeling of Train Aerodynamics in a Straight Tunnel

Croquer¹,

Fellouah²,

Poncet³

2020

Progress in Canadian Mechanical Engineering. Volume 3

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A numerical investigation using k − ω SST RANS modeling has been carried out, to evaluate the aerodynamics of different metro train geometries through a straight tunnel. Drag performance has been compared with a typical blunt face train design, representative of European metro networks. The proposed models have different edge rounding characteristics at the front and rear faces. The study focuses on skin friction and pressure drag coefficients for trains traveling at 40 km/hour in a straight tunnel with a blockage ratio of 0.69. All the considered alternatives show a drag reduction of at least 5% relative to the baseline case.

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Section: A Computational Domain and Boundary Conditionsmentioning

confidence: 99%