CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens

changes in V3.15

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 11, 2002, 05:52
Default changes in V3.15
  #1
Nicola
Guest
 
Posts: n/a
Hello all,

I'm studying a laminar steady flow in a quite complex geometry. My problem is: after changing to the new version of star, I can't reach convergence anymore. Does anyone know about changes of default values? Or something different?

Thanks, Nicola
  Reply With Quote

Old   October 11, 2002, 08:05
Default Re: changes in V3.15
  #2
stefan
Guest
 
Posts: n/a
Look at the release notes:

The default value for the pressure under-relaxation has been changed from 0.2 to 0.3.

The default residual normalization factor has been changed to what used to be the 'alternative' factor in v3.10.

etc...

  Reply With Quote

Old   October 11, 2002, 08:34
Default Re: changes in V3.15
  #3
James
Guest
 
Posts: n/a
I think the whole normalisation method has changed. Not only a factor. In my opinion the former switch 105 is now used by default.

  Reply With Quote

Old   October 11, 2002, 08:41
Default Re: changes in V3.15
  #4
stefan
Guest
 
Posts: n/a
This is what I meant. I just copied the text from the release notes (look there for further details.)
  Reply With Quote

Old   October 11, 2002, 09:05
Default Re: changes in V3.15
  #5
Joern Beilke
Guest
 
Posts: n/a
Also the pressure gradient calculation was changed. You can switch back to the old (least square) method using "switch 60 on"
  Reply With Quote

Old   October 11, 2002, 10:11
Default Re: changes in V3.15
  #6
Nicola
Guest
 
Posts: n/a
thanks for your answers, but where can I find the release notes?
  Reply With Quote

Old   October 15, 2002, 02:12
Default Re: changes in V3.15
  #7
stefan
Guest
 
Posts: n/a
Use Help menu in prostar or look in $STARDIR/man/rnotes.
  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



All times are GMT -4. The time now is 23:27.