DES of the Flow Around a High Speed Train under the Influence of Wind Gusts

Paper i proceeding, 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.