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

Runing cavity on Discretizer

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By nimasam

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 21, 2013, 13:01
Default Runing cavity on Discretizer
  #1
New Member
 
Tom
Join Date: Jun 2013
Posts: 26
Rep Power: 12
RTom is on a distinguished road
Hello I'm trying to run the cavity case of OpenFOAM UserGuide in Discretizer, but looks like Discretizer cannot take the moving walls conditions like OpenFOAM.

The results are different.

If check the "p.text" file on directory "0" I will see that Discretizer always needs a p fixedValue in at least 1wall and does not admit a zeroGradient on all walls; when the OpenFOAM accept a p zeroGradient on all walls.

The case I'm trying to simulate on Discretizer is "cavity", according to the UserGuide.pdf that you can find it in opt/openfoam201/doc

Can this case be run in Discretizer?
RTom is offline   Reply With Quote

Old   June 22, 2013, 08:53
Default
  #2
Senior Member
 
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,266
Blog Entries: 1
Rep Power: 24
nimasam is on a distinguished road
solvers need to know the pressure of atleast one point ,
reference point or refrence cell for pressure, can be assigned at fvSolution in piso or pimple sub dict
RTom likes this.
__________________
My Personal Website (http://nimasamkhaniani.ir/)
Telegram channel (https://t.me/cfd_foam)
nimasam is offline   Reply With Quote

Old   June 22, 2013, 23:00
Default
  #3
New Member
 
Tom
Join Date: Jun 2013
Posts: 26
Rep Power: 12
RTom is on a distinguished road
Oh thanks! it works!
I established the pRefCell and pRefValue in fvSolution directly from the .text document (in the "system" directory)

But is there a way to make this change it directly from Driscretizer GUI? I know how to set the nCorrectors and nNonOrthogonalCorrectors of fvSolution.text with the GUI, but I don't find a way to set the pRefCell and pRefValue from the GUI
RTom is offline   Reply With Quote

Old   June 25, 2013, 01:11
Default
  #4
Senior Member
 
immortality's Avatar
 
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26
immortality is on a distinguished road
hi Tom
Continuing from privates so discretizer is a GUI for OF that can also used for optimization purposes.can it be combined with dakota also in your opinion.
Thats nice to be updated and support more as dear Bruno said in another thread about Discretizer.
I mistake it by digitizer thats for figures.
__________________
Injustice Anywhere is a Threat for Justice Everywhere.Martin Luther King.
To Be or Not To Be,Thats the Question!
The Only Stupid Question Is the One that Goes Unasked.
immortality is offline   Reply With Quote

Reply

Tags
discretizer


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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Urgent: Unsteady 3-D supersonic cavity flow Min-Sung Kang FLUENT 3 April 6, 2014 09:50
[Discretizer] Discretizer Rajshekar OpenFOAM Community Contributions 2 November 23, 2010 11:13
is there any parallel code for the famous Lid Driven Cavity flow? gholamghar Main CFD Forum 0 August 1, 2010 01:55
cavity in flat plate and drag prediction Far FLUENT 0 May 19, 2010 14:47
drag of flat plate with cavity Far FLUENT 0 May 18, 2010 04:57


All times are GMT -4. The time now is 12:54.