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

p_rgh in interFoam 2.1.1

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 19, 2012, 21:02
Default p_rgh in interFoam 2.1.1
  #1
Member
 
Tayo
Join Date: Aug 2012
Location: FL
Posts: 94
Rep Power: 4
tayo is on a distinguished road
Greetings,

I'm using OF 2.1.1. From previous trends, I've learnt that p_rgh was newly introduced from OF 1.7 and pressure was modified and computed as p_rgh = p - rho*gh in a number of OF solvers including interFoam. I'm using interFoam for my case and I need pressure gradient to cause air bubble rise in a liquid. How do I include this rho*gh to my simulation. I tried using some BC, but no success for now. Without this gradient, my bubble just free falls.Do I need to modify the solver? Is there another easier way using BC? Anticipating your reply. Thank you.

Last edited by tayo; September 19, 2012 at 21:56.
tayo is offline   Reply With Quote

Old   September 20, 2012, 19:07
Default
  #2
Member
 
Tayo
Join Date: Aug 2012
Location: FL
Posts: 94
Rep Power: 4
tayo is on a distinguished road
All right, problem fixed. And p_rgh in OF 2.1.1 is not a problem (atleaast not for the case I run) and it does not impede buoyancy either.
tayo is offline   Reply With Quote

Old   September 21, 2012, 06:39
Default
  #3
Senior Member
 
akidess's Avatar
 
Anton Kidess
Join Date: May 2009
Location: Delft, Netherlands
Posts: 919
Rep Power: 16
akidess will become famous soon enough
It is likely that at some point in the future, someone will find this thread and get angry at you for not explaining how you fixed your problem
__________________
*On twitter @akidTwit
*Spend as much time formulating your questions as you expect people to spend on their answer.
*Check out the scientific computing exchange http://scicomp.stackexchange.com
akidess is offline   Reply With Quote

Old   September 21, 2012, 13:51
Default
  #4
Member
 
Tayo
Join Date: Aug 2012
Location: FL
Posts: 94
Rep Power: 4
tayo is on a distinguished road
Quote:
Originally Posted by akidess View Post
It is likely that at some point in the future, someone will find this thread and get angry at you for not explaining how you fixed your problem
Sorry to take your time, it was my fault. I unknowingly inserted liquid inside my bubble and air as the surrounding. Of course, it should sink irrespective of the buoyancy.
tayo 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
InterFoam stops after deltaT goes to 1e14 francesco_b OpenFOAM Running, Solving & CFD 8 July 31, 2013 03:29
OpenFOAM Foundation Releases OpenFOAMŪ Version 2.1.1 opencfd OpenFOAM Announcements from ESI-OpenCFD 0 May 31, 2012 10:07
Segmentation fault in interFoam run through openMPI voingiappone OpenFOAM 16 November 2, 2011 08:49
Slow interFoam compared with other CFD tools? Ralph M OpenFOAM Programming & Development 1 November 17, 2010 07:46
Open Channel Flow using InterFoam type solver sxhdhi OpenFOAM Running, Solving & CFD 3 May 5, 2009 22:58


All times are GMT -4. The time now is 01:42.