CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

Umean

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 10, 2005, 15:39
Default I am using a turbulence model
  #1
New Member
 
Kaushik Balakrishnan
Join Date: Mar 2009
Posts: 3
Rep Power: 8
balakrishnan is on a distinguished road
I am using a turbulence model for which I have to know the mean velocity (time average). I am currently using the "Umean" option in FOAM. Could anyone please tell me whether "Umean" is a time average or not, and if so, in what time interval interval. I just want to know how FOAM finds the average velocity (Umean) before I use Umean.

Thanks,
Kaushik
balakrishnan is offline   Reply With Quote

Old   March 10, 2005, 16:02
Default What do you mean by the "Umean
  #2
Senior Member
 
Join Date: Mar 2009
Posts: 854
Rep Power: 13
henry is on a distinguished road
What do you mean by the "Umean" option?
henry is offline   Reply With Quote

Old   March 11, 2005, 04:34
Default Is the turbulence model you ar
  #3
kärrholm
Guest
 
Posts: n/a
Is the turbulence model you are using a RANS model? Like k-epsilon?

/Fabian
  Reply With Quote

Old   March 11, 2005, 12:18
Default I typed 'Umean' in 'fields' be
  #4
New Member
 
Kaushik Balakrishnan
Join Date: Mar 2009
Posts: 3
Rep Power: 8
balakrishnan is on a distinguished road
I typed 'Umean' in 'fields' belonging to sample. When I sample the data, I guess Foam is finding an average. I wanted to confirm whether this is a time average, and also in what time interval. I am using the oodles solver, Smagorinsky model.


-Kaushik
balakrishnan is offline   Reply With Quote

Old   March 11, 2005, 12:31
Default Yes it is time average. Have
  #5
Member
 
diablo80@web.de
Join Date: Mar 2009
Posts: 93
Rep Power: 8
sampaio is on a distinguished road
Yes it is time average.
Have a look at calculateAverages include file
Luiz
sampaio is offline   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



All times are GMT -4. The time now is 04:46.