Numerical simulations of the turbulent flow surrounding a high speed train are carried out at SNCF (French Railways) using the commercial code Star CD. The numerical methodology developed consists in building the complete detailed topology of a train with basic blocks. The validation of the method is done through a comparison with wind tunnel experiments. A globally good agreement is found concerning the drag estimation of a short trainset. Predictions of mean streamwise velocity and turbulent kinetic energy show the quite satisfactory capabilities of the methodology.
A Comparison of the Numerical Simulation and Experimental Investigation of the Flow Around a High Speed Train
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Paradot, N, Talotte, C, Garem, H, Delville, J, & Bonnet, J. "A Comparison of the Numerical Simulation and Experimental Investigation of the Flow Around a High Speed Train." Proceedings of the ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. Volume 1: Fora, Parts A and B. Montreal, Quebec, Canada. July 14–18, 2002. pp. 1055-1060. ASME. https://doi.org/10.1115/FEDSM2002-31430
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