DES of the Flow Around a High Speed Train under the Influence of Wind Gusts
Paper in proceedings, 2008

Detached eddy simulation of flow around a highspeed train exiting a tunnel and passing through a region of varying crosswind is presented. Results using two crosswind profiles with different velocity amplitudes during and after the train’s passage are compared. The flow surrounding the train after the passage through the varying crosswind velocity profile was found to return to a flow similar to that before the exit from the tunnel in case when the final crosswind velocity is zero. Thus the flow seems to forget the passage through the wind gust.

crosswind stability

DES

detached eddy simulation

wind gust

vehicle aerodynamics

train aerodynamics

Author

Sinisa Krajnovic

Chalmers, Applied Mechanics, Fluid Dynamics

Johan Georgii

Hassan Hemida

Chalmers, Applied Mechanics, Fluid Dynamics

7th International ERCOFTAC Symposium on “Engineering Turbulence Modelling and Measurements”, June 4-6, 2008, Limassol, Cyprus.

Subject Categories

Fluid Mechanics and Acoustics

More information

Created

10/7/2017