How to start swak4Foam
 

Hi everyone,
I successfully installed swak4Foam. Now i am working on OF2.1.1 version. Initially i run wobbler case in the swak4Foam library by using solidDisplacementFoam (i didn't made any changes for the solver), I got some error message.

Error:-
malli_reddy@ubuntu:~/OpenFOAM/malli_reddy-2.1.1/swak4Foam/Examples/groovyBC/wobbler$ solidDisplacementFoam
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.1.1-221db2718bbb
Exec : solidDisplacementFoam
Date : Sep 14 2012
Time : 15:41:15
Host : "ubuntu"
PID : 30407
Case : /home/malli_reddy/OpenFOAM/malli_reddy-2.1.1/swak4Foam/Examples/groovyBC/wobbler
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Reading mechanical properties



--> FOAM FATAL ERROR:
Attempt to return primitive entry ITstream : /home/malli_reddy/OpenFOAM/malli_reddy-2.1.1/swak4Foam/Examples/groovyBC/wobbler/constant/mechanicalProperties::rho, line 17, IOstream: Version 2.0, format ASCII, line 0, OPENED, GOOD
primitiveEntry 'rho' comprises
on line 17 the word 'rho'
on line 17 the punctuation token '['
on line 17 the label 1
on line 17 the label -3
on line 17 the label 0
on line 17 the label 0
on line 17 the label 0
on line 17 the label 0
on line 17 the label 0
on line 17 the punctuation token ']' ...
as a sub-dictionary

From function const dictionary& primitiveEntry::dict()
in file db/dictionary/primitiveEntry/primitiveEntry.C at line 170.

FOAM aborting

#0 Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#1 Foam::error::abort() in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#2 Foam::primitiveEntry::dict() in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#3 Foam::dictionary::subDict(Foam::word const&) in "/opt/openfoam211/platforms/linuxGccDPOpt/lib/libOpenFOAM.so"
#4
in "/opt/openfoam211/platforms/linuxGccDPOpt/bin/solidDisplacementFoam"
#5 __libc_start_main in "/lib/i386-linux-gnu/libc.so.6"
#6
in "/opt/openfoam211/platforms/linuxGccDPOpt/bin/solidDisplacementFoam"
Aborted

At first i run with blockMesh and then i called solidDisplacementFoam. Please suggest me how to rectify this problem.

Thanks
Regards
Mallikarjuna

Greetings Mallikarjuna,

The file content format has changed since the example was created for swak4Foam. You can easily fix the problem by running the following command:
When in doubt, check OpenFOAM's own tutorials ;)

Best regards,
Bruno

Hi Bruno,
Thanks for quick reply. Now it is working.
I have one more doubt. actually in my case i need write zero flux boundary condition. when i applied this boundary condition, i got an expression for gradient. In that equation i need to access gradient of another field. Could you please suggest me any case which is close to my problem.

Thanks
Regards
Mallikarjuna

Hi Mallikarjuna,

Sorry, I unfortunately don't know. I hope someone else can answer you.
Perhaps you might have to create a new thread to ask that question and be more detailed of what you want to know!

Best regards,
Bruno

"snGrad(foo)" in a groovyBC-expression should give you the surface-normal gradient of field foo on the patch. Hope that helps

Hi Gshaider,
Thanks for the quick reply. Now it is working. Thank a lot, you are the man.

Thanks
Regards
Mallikarjuna