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July 23, 2019, 08:12 |
Mesh deformation with SLERP interpolation
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#1 |
Senior Member
Mikko
Join Date: Jul 2014
Location: The Hague, The Netherlands
Posts: 243
Rep Power: 13 |
Hi All,
I would like to use the SLERP interpolation for the mesh deformation in my fluid-structure simulations. It is being used by default in the rigid body motion framework but I cannot find a way how to use it for the mesh deformation only. I would like to use it in a similar way as the other elliptic mesh deformation solvers (displacementLaplacian, displacementSBRStress, etc.) so define the displacements as Dirichlet boundary condition (pointDisplacement). Help would be appreciated! Best, Mikko |
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May 19, 2020, 07:11 |
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#2 |
Member
benoit paillard
Join Date: Mar 2010
Posts: 96
Rep Power: 16 |
Hi there,
Forced motions with slerp has been added to OpenFOAM 7 with interpolatingSolidBodyMotionSolver. https://openfoam.org/release/7/ https://github.com/OpenFOAM/OpenFOAM...98ee933b910741 I'm not sure there is a tutorial with complete details about it, but it's rather easy to implement from what I've tried ! |
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May 20, 2020, 16:52 |
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#3 |
Senior Member
Mikko
Join Date: Jul 2014
Location: The Hague, The Netherlands
Posts: 243
Rep Power: 13 |
Hi Benoit,
Thanks for your reply. I thought as well that this should be possible but unfortunately I still haven't managed to get the SLERP working for mesh deformation only. |
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May 22, 2020, 07:21 |
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#4 |
Member
benoit paillard
Join Date: Mar 2010
Posts: 96
Rep Power: 16 |
hi, here's an example of a working dynamicMeshDict in order to use SLERP for prescribed rigid body deformation, working with OF7
Code:
FoamFile { version 2.0; format ascii; class dictionary; location "system"; object dynamicMeshDict; } ampli (0 0 -10.0); omeg 12.0; dynamicFvMesh dynamicMotionSolverFvMesh; motionSolver interpolatingSolidBody; patches ( patch0 ); CofG (0 0 0); innerDistance 1; outerDistance 10; solidBodyMotionFunction oscillatingRotatingMotion; oscillatingRotatingMotionCoeffs { origin (0 0 0); axis (0 0 1); omega $omeg; amplitude $ampli; } |
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June 5, 2023, 05:05 |
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#5 |
Senior Member
M. Montero
Join Date: Mar 2009
Location: Madrid
Posts: 155
Rep Power: 17 |
Any update in this topic?
I am also interested on using slerp with mesh deformation, not for rigid body deformation. I want to use it for FSI of a wing Best Regards Marcelino |
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