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

Two differebt implementation but different results

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 23, 2011, 08:32
Default Two differebt implementation but different results
  #1
ata
Senior Member
 
ata's Avatar
 
ata kamyabi
Join Date: Aug 2009
Location: Kerman
Posts: 322
Rep Power: 8
ata is on a distinguished road
Hi FOAMers
I change this part of icoFoam code:
fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)
);

solve(UEqn == -fvc::grad(p));
to:
fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)
+ fvc::grad(p)
);

solve(UEqn);
but in the second case I got divergence.
Can any one tell me what is the problem?
Best regards
ata 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
OpenFOAM - Validation of Results Ahmed OpenFOAM Running, Solving & CFD 9 June 22, 2011 18:59
Different Results from Fluent 5.5 and Fluent 6.0 Rajeev Kumar Singh FLUENT 6 December 19, 2010 11:33
Implementation issues of fvSchemes / laplacianScheme, in particular gaussLaplacianSch thomek OpenFOAM Programming & Development 0 October 18, 2010 05:10
Exporting Fluent results as 4D images in an interactive window Luca95314 ANSYS 0 October 11, 2010 17:16
validation of CFD results andy FLUENT 0 June 13, 2007 13:55


All times are GMT -4. The time now is 20:23.