[fisher]

Hello,
I am trying to use the class coupledFvScalarMatrix with OpenFOAM 1.5. Has anybody successfully compiled the coupledMatrix directory from http://openfoam-extend.svn.sourceforge.net/viewvc/openfoam-extend/trunk/Core/Ope nFOAM-1.4.1-dev/src/coupledMatrix/
with the 1.5 release? Or am I likely to get into unsurmountable problems and better downgrade my project to 1.4.1-dev?

When running "wmake all" in the coupledMatrix directory, the first error I get is
>In file included from coupledLduMatrix/coupledLduMatrix.C:36:
>coupledLduMatrix/coupledLduMatrix.H:109: error: expected ',' or '...' before '&' token

This is the following line
> void Amul
> (
> FieldField<field,>& result,
> const FieldField<field,>& x,
> const PtrList<fieldfield<field,>scalar> >& bouCoeffs,
> const lduInterfaceFieldPtrsListList& interfaces, *** <---line 109 ***
> const direction cmpt
> ) const;

In 1.4.1-dev I find the lduInterfaceFieldPtrsListList defined in src/OpenFOAM/matrices/lduMatrix/lduAddressing/lduInterfaceField/lduInterfaceFiel dPtrsList.H as:
> typedef List<lduinterfacefieldptrslist> lduInterfaceFieldPtrsListList;
while this definition doesn't exist in release 1.5.

Do I have to step through every small inconsistency between the two versions or is there some higher level compatibility patch? Maybe somebody has gone through these steps before?

Regards,
Olaf

[hjasak]

Hello,

Retro-fitting it yourself would be a major pain. I have prepared a merged version 1.5-dev with all the capabilities you need, but I am still waiting for test loops and contributions from a University (you know who you are!)

If you need it pre-release, please drop me a line and we'll talk about it.

Hrv

[fisher]

Thank you very much for the reply, Hrvoje!
Can you give a rough estimate when 1.5-dev will be tested?
It's perfectly fine with me to develop early implementations with 1.4.1-dev. But in 1-2 months I'd need to find some possibility to merge the parts depending on coupledMatrix with other parts that I have already developed in 1.5.

When announcing the merged version 1.5-dev, do you mean a new version of coupledMatrix alone, of of the whole 1.4.1-dev? Latter would be my greatest Christmas present :-)

Regards,
Olaf

[johndeas]

Can't wait for this too

[nandiganavishal]

Hi All,

Is there any possibility to solve coupled PDE's directly (not using relaxation techniques) in OpenFoam. Can anyone give me a suggestion as to how to go about doing this.

Kindly help.

Regards

Vishal Nandigana

[fisher]

Hi Vishal,
Openfoam is always using the segregated solution method, solving one variable and one vector component after the other. It is not possible to solve coupled PDEs directly.

The coupledMatrix I have been asking about is not about coupled equations, but it takes care of spatially connected meshes.

Regards,
Olaf

[nandiganavishal]

Hi Olaf Fisher,

Thanks a lot for the reply. So the only way to solve coupled equations in OpenFoam is by using relaxation techniques.

Vishal

[hjasak]

Heya Olaf,

You are on my Christmas list then. All of the functionality from 1.4.1-dev is available and tested + some more goodies not seen before. BTW, are you going to be in Berlin - shall we talk about it?

Hrv

[fisher]

Dear Hrvoje,
this is very good news. Also thank you for the kind offer to meet in Berlin, but I can't arrange a visit during the week.

Regards,
Olaf

[saj216]

I know this is a very old post. I was wondering if there was an effective way to use coupledFvScalarMatrix on newer version of default Openfoam (7). As there has been limited discussion on this subject.

Thanks Sam