Using quasi 2D-3D coupling Set ID Found 2D-3D mapping results in a 2D mesh of size 200 from the 400 points in 3D space. ERROR: Cannot apply forces to one or more interface nodes

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Hi everyone,

I am trying to conduct simulation of flexible membrane by using openfoam, calculix.
I regard the initial stress as the initial condition of calculix and then start the coupled simulation.
There is an error

Using quasi 2D-3D coupling
Set ID Found
2D-3D mapping results in a 2D mesh of size 200 from the 400 points in 3D space.
ERROR: Cannot apply forces to one or more interface nodes.

When I change the *INITIAL CONDITIONS, TYPE=STRESS into

 *CLOAD
 Nsurface, 1, 0.0
 Nsurface, 2, 0.0
 Nsurface, 3, 0.0

there is no error. The case file is in the following link https://github.com/NUGUY2022/OpenFOAM_Calculix. I’d like to know why it happened and how to solve it. Thank you in advance.

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Can someone give me some suggestions to solve this problem?

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@Sun the repository you shared is probably private or does not exist anymore.

I don’t know much about CalculiX, but maybe one of the @calculix-users could help. Consider adding yourself to this group in case you are a CalculiX user.

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Hi Makis,
Thanks for your help. I have solved this problem. But I need other helps about calculix.

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@Sun great that you solved it! Could you please explain how? This could be useful to others in the community that stumble upon this thread.

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I change the nodes of interface in the fluid mesh to make it be consistent with solid part. Then it is solved.
Makis, could you give me any advice for handling large deformation for openfoam? Is there any method to solve it? The current dynamic mesh is difficult to handle it.

1 Like
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You could try the rbfMeshMotionSolver: Search results for 'rbfMeshMotionSolver' - preCICE Forum on Discourse

But let’s discuss in a new thread, if there are questions on that. :slight_smile:

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Thank you, Makis. I will open a new thread to discuss about ‘rbfMeshMotionSolver’.

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