Dear all, I need help in setting up the dynamicMeshDict for pimpleDyMFoam using sixDoF. Actually I have 2 concentric cylinders (2d) representing a shaft and a hole (journal bearing). On the external cylinder surface a tangential U is applied. On the internal cylinder the forces should be computed by the sixDof and the movingWallVelocity applied. My problem is that when the internal cylinder moves, only the external raw of mesh elements (the mesh is made with blockMesh) change size and shape. The other cells do not change shape and move together with the internal cylinder. How should I set the sixDoFRigidBodyMotionCoeffs (innerDistance and outerDistance) in the dynamicMeshDict in order to have a deformation of the whole mesh?
Regards,
Franco
Hi
to make it easier, you can check the following link first and then try to evaluate the two parameters(innerDistance an outerDistance) in a 2D case.
http://www.openfoam.org/version2.3.0/mesh-motion.php
After checked that, I think they define a torus or ring zone where the mesh can morphing. The region inside the innerDistance and beyond the outerDistance will be regarded as rigid.
Hope this helps ^_^
Hi
innerDistance: is the motion area of the cylinder which assume by literature review.
outerDistance: is the dynamic mesh area.
I'm not 100% sure, but might be helped. To make sure follow similar tutorial case in OpenFOAM version you use might get more information.
In my cylinder case that I'm working, I'm following wingMotion tutorial in OF-2.2.2.
All the best.
This is a complete parameters guide to configure dynamicMotionSolverFvMesh.
https://openfoamwiki.net/index.php/Parameter_Definitions_-_dynamicMotionSolverFvMesh
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