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chtMultiRegionDyMFoam Solver

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Old   March 11, 2015, 11:34
Default chtMultiRegionDyMFoam Solver
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Hi foamers,

i want to implement a DynamicMesh MultiRegion solver.
First of all: Is this possible to realize?

If i make a dynamicMesh of a region (i.e. moveDynamicMesh -region region0) i can create a mesh in which region 0 is moving (in my case turning) I have coupled boundary conditions for the temperature. But how should i set up the AMI patches?

So i thought i could try different things, but therefor i need the solver. So my aim is to implement the solver.

How can the solver be implemented?
i need to create a dynamicMesh and then i have to recalculate the flux for the fluid regions. So i tried doing this in the same way as in the pimpleDyFoam. It was more try and error but anything, however, i think i'm on the right path.
But now i have a problem.
I include correctPhi.H as in the pimpleDyFoam, and in this file, there are two variables pRefCell and pRefValue. These variables come obviously from the fvOptions. But there is my problem. I include the setRegionFluidFields.H in front of it, and there the fvOptions are defined with
fv::IOoptionList& fvOptions = fluidFvOptions[i]
But when i compile the solver it says:
./include/correctPhi.H: error: ´pRefCell´ was not declared in this scope
the same thing with pRefValue.

Additionally i get some errors with the pimple class.
for the line pimple.correctNonOrthogonal() it says
error: ´const class Foam::dictionary´ has no member named 'correctNonOrthogonal'
So i tried instead of this pimple.lookupOrDefault<int>("nNonOrthogonalCorrect ors", 0) (as it is in the readFluidMultiRegionPIMPLEControls.H) and this does work, but i don't know if this is correct, because i have no idea what this is doing.

so maybe anyone can help, this would be great

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Old   March 12, 2015, 14:24
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The error with pRef comes not from fvOption ...
The error with pRef is due to the fact that you have not declared this variables

The last error is due to the missing brackets:
I am not sure what you are doing and why you implement nonOrtho, because it should already be implemented…

At least I will mention, that you do not need to recalculate the fluxes because your problem only the solid is moving. Therefore you get no additional convection term (phiMesh). So you do not need the correction step. Only if your fluid domain is rotating than it is necessary.
Keep foaming,
Tobias Holzmann
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Old   March 11, 2016, 04:03
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Hey Wirman,

I just came across this thread and I'm interested in this topic as well. Did you manage to get any further with your development?

Have you been able to figure out whether this kind of solver is possible?

Thanks in advance

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chtmultiregion, dym, dynamicmesh

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