LARGE EDDY SIMULATION OF A TORNADO FLOW AROUND A TRAIN
Poster (konferens), 2017

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.

Författare

Kohei Obara

Sinisa Krajnovic

Chalmers, Tillämpad mekanik, Strömningslära

Guglielmo Minelli

Chalmers, Tillämpad mekanik, Strömningslära

Nobuyuki Okura

Masahiro Suzuki

Direct and Large-Eddy Simulation, 11 May 29 th -31 th 2017, Pisa, Italy

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Farkostteknik

Strömningsmekanik och akustik