CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Main CFD Forum

Help please!the problem in simulation of railway train passing a tunnel

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 19, 2011, 22:36
Default Help please!the problem in simulation of railway train passing a tunnel
  #1
New Member
 
Stone
Join Date: Mar 2011
Posts: 8
Rep Power: 15
shiren77 is on a distinguished road
hi,guys!I am useing sliding mesh to simulate the relative motion between the trian and tunnel.it is easy to converge,but the result is beyond my imaging,and wrong.attached is the fluent model and result contour.Any suggesiton or advice is appreciated.
Attached Images
File Type: jpg result.jpg (82.0 KB, 20 views)

Last edited by shiren77; March 22, 2011 at 23:09. Reason: exchange attached
shiren77 is offline   Reply With Quote

Old   March 20, 2011, 04:46
Default
  #2
Senior Member
 
Raashid Baig
Join Date: Mar 2010
Location: Bangalore, India
Posts: 135
Rep Power: 16
cfd_newbie is on a distinguished road
Hi Shiren,
Please post more details of your problem like the train speed, type of mesh and other details about the domain (model details).
Why are you using sliding mesh ?
Raashid
cfd_newbie is offline   Reply With Quote

Old   March 20, 2011, 09:38
Default
  #3
New Member
 
Stone
Join Date: Mar 2011
Posts: 8
Rep Power: 15
shiren77 is on a distinguished road
Thanks ,Raashid.The velocity is 350km per hour.The attached are pictures of local mesh aroun the nose shape,and boundary set.If more information is needed,please feel free to email to shiren77@gmail.com.
Attached Images
File Type: jpg local mesh.jpg (102.3 KB, 34 views)
File Type: jpg size and boundary.jpg (26.6 KB, 42 views)

Last edited by shiren77; March 22, 2011 at 23:16. Reason: wrong words
shiren77 is offline   Reply With Quote

Old   March 20, 2011, 09:47
Default
  #4
New Member
 
Stone
Join Date: Mar 2011
Posts: 8
Rep Power: 15
shiren77 is on a distinguished road
Raashid,sorry to forget you question.I think sliding mesh takes less time than dynamic mesh.you know,I am doing research on nose shape optimization,which need lots of analysis,so I prefer sliding mesh.
shiren77 is offline   Reply With Quote

Old   March 20, 2011, 15:11
Default
  #5
Senior Member
 
Joern Beilke
Join Date: Mar 2009
Location: Dresden
Posts: 534
Rep Power: 20
JBeilke is on a distinguished road
Have a look at this:

http://www.youtube.com/user/XFlowCFD

It seems to be really cool :-)
JBeilke is offline   Reply With Quote

Old   March 20, 2011, 22:27
Default
  #6
New Member
 
Stone
Join Date: Mar 2011
Posts: 8
Rep Power: 15
shiren77 is on a distinguished road
Quote:
Originally Posted by JBeilke View Post
Have a look at this:

http://www.youtube.com/user/XFlowCFD

It seems to be really cool :-)
Its really cool.But I have no money to buy it.Thank you all the same.
shiren77 is offline   Reply With Quote

Old   February 14, 2012, 09:32
Default train moving in tunnel help
  #7
Member
 
Join Date: Jan 2012
Posts: 58
Rep Power: 14
sheikh nasir is on a distinguished road
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
sheikh nasir is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
HELP! rail tunnel pressure problem miguel.berrozpe Main CFD Forum 1 February 14, 2012 09:35
Urgent; convergence problem in MRF simulation Mansureh ANSYS 4 February 2, 2011 07:00
mass imbalance in wind tunnel problem Robert2011 FLUENT 0 January 25, 2011 07:46
mass balance problem in transient simulation nana84 CFX 2 April 15, 2010 20:53
Star-CD transient simulation, problem of loss of mass kit STAR-CD 3 April 13, 2010 12:34


All times are GMT -4. The time now is 14:52.