Overset mesh with 6 dof v1706
Hi! I am working on analyzing the movement of complex shape three dimensional object placed in fluid by using oversetmesh.
Now simulation is running without error. but I have some question about boundary condition. I use noSlip or MovingWallVelocity as boundary condition of the objects. The motion of the object is different depending on the boundary condition. Especially, I often fails the simulation in the case of using MovingWallVelocity under the constraint of vertical spring. So mainly I use noSlip. 1, What is the difference between these boundary conditions? Basically this simulation has high reynolds number, so I would like to use LES. 2, How can I use the LES in overPimpleDyMFoam? The object is attached to a thread like a fishing bait. 3, And if it is possible, Could you explain the constraint of the vertical spring in DynamicMeshDict? Is it correct to adapt the vertical spring in this case? I am assuming thread as a nylon. How should I set the value of stiffness and damping? |
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