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-   -   Help please!the problem in simulation of railway train passing a tunnel (http://www.cfd-online.com/Forums/main/86331-help-please-problem-simulation-railway-train-passing-tunnel.html)

shiren77 March 19, 2011 22:36

Help please!the problem in simulation of railway train passing a tunnel
 
1 Attachment(s)
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.

cfd_newbie March 20, 2011 04:46

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

shiren77 March 20, 2011 09:38

2 Attachment(s)
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.

shiren77 March 20, 2011 09:47

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.

JBeilke March 20, 2011 15:11

Have a look at this:

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

It seems to be really cool :-)

shiren77 March 20, 2011 22:27

Quote:

Originally Posted by JBeilke (Post 300239)
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.

sheikh nasir February 14, 2012 09:32

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:


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