[egebat7]

Dear Foamers,

I am trying to conduct a simulation where I need to morph the shapes of multiple airfoils while they are rotating on a stationary region (The mesh around the airfoil must rotate with the airfoil for a reason so I need to achieve this with overset mesh/rotating motion). I've already achieved shape morphing with overset mesh when there is no overset mesh rotation but things are getting more complicated when there is overset mesh motion.

So I need to use dynamicOversetFvMesh with 2 different solvers simultaneously: multiSolidBodyMotionSolver (For overset mesh rotation of airfoils) and solidBodyDisplacementLaplacian (For the shape morphing of airfoils). Do you have any suggestions on how to achieve this?

I used to achieve Sliding(Rotating) mesh + Morphing without overset mesh with dynamicMultiMotionSolverFvMesh. But now this is not the case, where I need to stick with the dynamicOversetFvMesh to able to compute overset mesh motion.

PS: I am using OpenFOAM v1706.

Thank you for your time.

Best Regards,

Ege

[Suya_94]

Hi Ege,

Were you able to figure out the way for your problem?.

The issue is actually addressable in OpenFOAM-v1912 and the following versions, however I notice a bug that keeps updating the overset mesh to its default (t_0) position, at every alternate time step.

Please let me know if you or anyone has any experience with this issue.

Thanks

[quarkz]

Originally Posted by Suya_94

Hi Ege,

Were you able to figure out the way for your problem?.

The issue is actually addressable in OpenFOAM-v1912 and the following versions, however I notice a bug that keeps updating the overset mesh to its default (t_0) position, at every alternate time step.

Please let me know if you or anyone has any experience with this issue.

Thanks

Hi Suya,

Do you have an example of your setup? Maybe we can take a look and see how to troubleshoot...

[Horst]

Dear Ege,


have you been succesful in combining overset with morphing? I am trying to do so at the moment but as far as I understand, the use dynamicOversetFvMesh AND dynamicMotionSolverFvMesh is not possible.

If you or anyone else solved this issue, i would aprecciate if you could share your dynamicMeshDict.

Thanks in advance!


Georg

[xiangxiang]

Originally Posted by Horst

Dear Ege,


have you been succesful in combining overset with morphing? I am trying to do so at the moment but as far as I understand, the use dynamicOversetFvMesh AND dynamicMotionSolverFvMesh is not possible.

If you or anyone else solved this issue, i would aprecciate if you could share your dynamicMeshDict.

Thanks in advance!


Georg

Hi Georg
Have you combined overset and morphing? I used precice to couple calculix and openfoam. In my case, the fluid-to-structure interface of the front mesh was deformed, and the displacement was derived from calculix calculation. Now the non-overset mesh was fine, but the overset mesh would report errors. This seems to be consistent with the explanation in foam extend: “ Direct application of overset mesh would result with deformation of both background and front mesh”.
Do you have any modification suggestions?