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Forum: OpenFOAM Running, Solving & CFD July 27, 2018, 05:44
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Thank you very much for your...

Dear Philip,

Thank you very much for your effort. Anyway, I learned a lot from this topic. I will try to do something and if I succeed I will share my ideas in this topic.

Best regards,
Tar
Forum: OpenFOAM Running, Solving & CFD July 26, 2018, 10:22
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Thank you very much for your...

Dear Philip,

Thank you very much for your answer. I have checked it and concluded that this part is not right:



Sf & ((I - sqr(n)) & (I - sqr(n))
&...
Forum: OpenFOAM Running, Solving & CFD July 25, 2018, 11:46
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, thank you for your answer. The...

Dear Philip, thank you for your answer.
The tangential laplacian means that we use only the tangential part of the gradient (along the wall) when we calculate the laplacian:
...
Forum: OpenFOAM Running, Solving & CFD July 25, 2018, 09:39
Replies: 82
Views: 19,070
Posted By Kombinator
Small update. I tried to go the second way and...

Small update.
I tried to go the second way and take laplacian after the projection. I am not sure that this was the right way, but it was worth to try. Right now it looks something like this:

//...
Forum: OpenFOAM Running, Solving & CFD July 25, 2018, 03:31
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Sorry to bother you. It seems...

Dear Philip,

Sorry to bother you. It seems that I stuck again but right now with tangential laplacian. So tangential laplacian is:

\nabla^{2}_{t}\varphi = \nabla\cdot((I - n\cdotn)\cdot(I -...
Forum: OpenFOAM Running, Solving & CFD July 24, 2018, 09:27
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Thank you for your answer, it...

Dear Philip,

Thank you for your answer, it helps me a lot. But when I try to compile your code it shows the following error (openFoam 4.1):


dynamicBC.H: In function ‘int main(int, char**)’:...
Forum: OpenFOAM Running, Solving & CFD July 24, 2018, 03:06
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Thank you very much for your...

Dear Philip,

Thank you very much for your advice. It works now and I understood my error and algorithm. I also would like to ask two more questions (hope last questions) if you don't mind:
1. In...
Forum: OpenFOAM Running, Solving & CFD July 23, 2018, 12:14
Replies: 82
Views: 19,070
Posted By Kombinator
Hi Philip, Thank you for your answer. The...

Hi Philip,

Thank you for your answer. The general goal is implementation the following dynamic boundary condition:
\frac{\partial\varphi}{\partial n} = a\cdot\nabla^{2}_{t}\varphi
where \varphi...
Forum: OpenFOAM Running, Solving & CFD July 23, 2018, 11:34
Replies: 82
Views: 19,070
Posted By Kombinator
One more update: When I tried this ...

One more update:

When I tried this

PotEpatch.gradient()[faceI] = PotE.internalField()[faceI];


the code has complied. To be honest I don'y understand why and I suspect that it is not...
Forum: OpenFOAM Running, Solving & CFD July 23, 2018, 10:04
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Sorry to bother you again. I...

Dear Philip,

Sorry to bother you again. I faced one more problem. My code is following:

label patchID = mesh.boundaryMesh().findPatchID("frontAndBack");

if(patchID == -1)

{
...
Forum: OpenFOAM Running, Solving & CFD July 20, 2018, 16:59
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Thank you very much for your...

Dear Philip,

Thank you very much for your answer. Your link helped me a lot to understand the reason.

Best regards,
Tar
Forum: OpenFOAM Running, Solving & CFD July 20, 2018, 10:57
Replies: 82
Views: 19,070
Posted By Kombinator
Dear Philip, Hope you have been monitoring...

Dear Philip,

Hope you have been monitoring this thread. I try to compile the following code (based on yours) for fixedGradient but I have the following error. I wonder if you could tell what the...
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