Train Speed
 

Hi all. I need to model a train entering a tunnel with varies speed that is from low speed to high speed. But i am not sure what speed constitute a high speed train. What is the limit/range for high speed train. I am currently starting the model with a speed of 22m/s.Thanks for advice.

Re: Train Speed
 

The german ICE or the france TGV travel with up to 300 km/h, which is 83.3 m/s.

Re: Train Speed
 

Hello, When a train goes in a tunnel, there are some pressure fluctuations. If the pressure increase is too high, there will be some consequences on passenger confort. So your maximum speed is a function of the tunnel geometry, the train, .... You could find a presentation made by the SNCF (French National Railway Company) during the Star-CD french user conference 2000 at www.adapco-online.com

Re: Train Speed
 

Hi thanks marc, that is to say once the speed is at 83.3 m/s, it is considered high speed train? Pls enlightened me.

Re: Train Speed
 

Thanks for help, HVN.

train moving in tunnel help
 

hello
i am working on train moving in tunnel. i am getting floating error:invalid number. can any one help me. my email is sheikhnasir39@gmail.com
plz help me
thanks
:confused: