|
[Sponsors] |
![]() |
![]() |
#1 |
Guest
Posts: n/a
|
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.
|
|
![]() |
![]() |
![]() |
#2 |
Guest
Posts: n/a
|
The german ICE or the france TGV travel with up to 300 km/h, which is 83.3 m/s.
|
|
![]() |
![]() |
![]() |
#3 |
Guest
Posts: n/a
|
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
|
|
![]() |
![]() |
![]() |
#4 |
Guest
Posts: n/a
|
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.
|
|
![]() |
![]() |
![]() |
#5 |
Guest
Posts: n/a
|
Thanks for help, HVN.
|
|
![]() |
![]() |
![]() |
#6 |
Member
Join Date: Jan 2012
Posts: 58
Rep Power: 13 ![]() |
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 ![]() |
|
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Train Simulation Entering A tunnel. | Christos Sfyris | Siemens | 7 | February 6, 2012 07:02 |
Tip speed, RPM, Power, Wind Speed relationships | nabilzhafri | Main CFD Forum | 0 | July 22, 2010 11:28 |
low speed compressible flow | lily | CFX | 2 | November 16, 2005 05:15 |
low speed compressible two phase flow?? | cat | CFX | 0 | November 15, 2005 07:59 |
rotation speed in the domain | jiaye gan | CFX | 3 | April 5, 2004 08:50 |