Help with dynamicFvMesh

bubbleb · September 1, 2021, 22:15

Hello Foamers

I'm solving a problem with overInterDyMFoam.
Now I want to compile AMR into my program, and I know that their dynamicFvMesh are not compatible.
How can I do it ?

Best regard

mAlletto · September 2, 2021, 05:07

Hello,

the problem here is that dynamicRefineFvMesh inherits from dynamicFvMesh

and dynamicOversetFvMesh inherits from dynamicMotionSolverListFvMesh which inherits from dynamicFvMesh.

So merging the functionaltiy of the overset mesh and of AMR in on class is not so trivial. Be doing this you get the so called diamod of death: https://en.wikipedia.org/wiki/Multiple_inheritance

There are some workarounds in the web to solve this issue. Maybe you can try a few and report back if you were successfull.

Best

Michael

mAlletto · September 2, 2021, 08:20

As pointed out here: https://stackoverflow.com/questions/...le-inheritance

a compositon of AMR and overset would help making a new class oversetAMR.

I tried it once but then I reliesed that I constructed two different meshes since I called the constructurs of AMR and overset in the constructor of oversetAMR.

So maybe one can trie to construct overset first and give that a reference of overset to AMR and construct ARM from a reference of overset.

Then maybe functionality of AMR can be used on overset.

One can try this and look if it's working

bubbleb · September 6, 2021, 03:15

Sorry for the late reply and thank you very much.
I will try about that.

Best regards

September 1, 2021, 22:15	Help with dynamicFvMesh	#1
bubbleb New Member Andi Join Date: Sep 2021 Posts: 3 Rep Power: 5	Hello Foamers I'm solving a problem with overInterDyMFoam. Now I want to compile AMR into my program, and I know that their dynamicFvMesh are not compatible. How can I do it ? Best regard

September 2, 2021, 08:20		#3
mAlletto Senior Member Michael Alletto Join Date: Jun 2018 Location: Bremen Posts: 616 Rep Power: 16	As pointed out here: https://stackoverflow.com/questions/...le-inheritance a compositon of AMR and overset would help making a new class oversetAMR. I tried it once but then I reliesed that I constructed two different meshes since I called the constructurs of AMR and overset in the constructor of oversetAMR. So maybe one can trie to construct overset first and give that a reference of overset to AMR and construct ARM from a reference of overset. Then maybe functionality of AMR can be used on overset. One can try this and look if it's working bubbleb likes this.

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September 2, 2021, 05:07		#2
mAlletto Senior Member Michael Alletto Join Date: Jun 2018 Location: Bremen Posts: 616 Rep Power: 16	Hello, the problem here is that dynamicRefineFvMesh inherits from dynamicFvMesh and dynamicOversetFvMesh inherits from dynamicMotionSolverListFvMesh which inherits from dynamicFvMesh. So merging the functionaltiy of the overset mesh and of AMR in on class is not so trivial. Be doing this you get the so called diamod of death: https://en.wikipedia.org/wiki/Multiple_inheritance There are some workarounds in the web to solve this issue. Maybe you can try a few and report back if you were successfull. Best Michael

September 6, 2021, 03:15		#4
bubbleb New Member Andi Join Date: Sep 2021 Posts: 3 Rep Power: 5	Sorry for the late reply and thank you very much. I will try about that. Best regards