CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CD-adapco

Nastran Temperatures as Wall boundary condition

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 6, 2005, 08:02
Default Nastran Temperatures as Wall boundary condition
  #1
Holger
Guest
 
Posts: n/a
Hi, do somebody know how to import a Nastran file with nodes and temperatures to an existing StarCD model as wall boundary temperatures? At the end it will be the coupling of StarCD and the Radiation Tool Radtherm. Thanks a lot.
  Reply With Quote

Old   September 7, 2005, 16:16
Default Re: Nastran Temperatures as Wall boundary conditio
  #2
staruser
Guest
 
Posts: n/a
The easiest would be to fit it into a boundary table in pro-STAR. You'll find more details about this in the pro-STAR help under "tbread".

An other option would be to import the shells and results as user data and smap these to your 3d model (use option "nearest") and create an smap file. If you restart from the smap file you should be able to use bcdefw.f to read the boundary temperature at the bounary from the next interior cell and use this in the very first iteration (use the variable intflg or iter to check if you're still in the first iteration). If the value isn't changed, the very first (in this case the interior) value will be used.

Your support office will be able to provide you with an example how to write bcdefw.f.

Regards.
  Reply With Quote

Old   September 8, 2005, 07:46
Default Re: Nastran Temperatures as Wall boundary conditio
  #3
Holger
Guest
 
Posts: n/a
Thanks for the very good hint. I tried your workaround and encountered the next problem. I imported the shells and resutlts as user data. Then I did an vaverage to get cell data stored in Register 4. But then it was not possible to smap, because the pst-file is missing. How can I create one? Another question would be how can I specify that my results are temperature data?

Thanks again for your answer.

Regards
  Reply With Quote

Old   September 10, 2005, 11:59
Default Re: Nastran Temperatures as Wall boundary conditio
  #4
staruser
Guest
 
Posts: n/a
You probably need to run one iteration just to get a pst file. After that you can write youre imported, pmapped results to the pst file. I think the command is "oper,put" or maybe "oper,save". In that command you should be able to tell which variable you are saving back to the pst file. Have a look at the oper command in the pro-STAR help.

Regards
  Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
match uds boundary condition in wall & wall-shadow pour FLUENT 0 May 20, 2008 08:56
wall boundary condition samee FLUENT 1 March 24, 2008 00:31
Wall boundary condition – UDF Ssn FLUENT 0 January 25, 2008 04:43
Symmetry and wall temperatures mrangitschdowcom OpenFOAM Running, Solving & CFD 6 March 1, 2007 06:55
Wall boundary condition Enda Bigarelli Main CFD Forum 1 March 15, 2002 00:13


All times are GMT -4. The time now is 22:23.