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LARGE EDDY SIMULATION OF A TORNADO FLOW AROUND A TRAIN

Kohei Obara ; Sinisa Krajnovic (Institutionen för tillämpad mekanik, Strömningslära) ; Guglielmo Minelli (Institutionen för tillämpad mekanik, Strömningslära) ; Nobuyuki Okura ; Masahiro Suzuki
Direct and Large-Eddy Simulation, 11 May 29 th -31 th 2017, Pisa, Italy (2017)
[Konferensbidrag, poster]

A tornado is defined as a destructive rotating column of air extending from a cloud to the ground. Tornadoes can cause derailment or overturning of trains. At least three train-turnover accidents in Japan are suspected to have been caused by tornadoes or crosswinds. Some experiments and simulations about effects of a crosswind have been studied [1]. However there are almost no studies about the aerodynamic forces acting on a train by a tornado. Therefore, the large eddy simulation (LES) and the experiments were conducted to investigate how a tornado flow acts on a train and the results were compared.



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Denna post skapades 2017-07-27.
CPL Pubid: 250820

 

Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)

Ämnesområden

Transport
Farkostteknik
Strömningsmekanik

Chalmers infrastruktur

C3SE/SNIC (Chalmers Centre for Computational Science and Engineering)