Oscillating mesh movement

Question

I want to run a simulation in which the DTCHull mesh oscillates left and right in a sinusoidal manner across the water, as is shown in this diagram (Oldfield et. al. 2015): How would I do this with interDyMFoam? I've seen examples in which rigid-body behaviour is simulated with dynamic meshes (e.g. floatingObject). However, what I need here is to have plain prescribed motion.

Could you please advise us whether the answer helps, or if not, which aspects should be improved? — Herpes Free Engineer, Jun 05 '18 at 17:02

score 1 · Accepted Answer · answered Jun 04 '18 at 09:02

To this end, overInterDyMFoam from OpenFOAM-v1712 (starting from OpenFOAM-v1706) can be used alongside the prescribed rigid body motion functionality.

overInterDyMFoam is the interDyMFoam using overset mesh functionality wherein mesh deformation in the latter is replaced by the Chimera grid concept.

Considering no set-up was mentioned in your question and therefore further settings can't be recommended on top of them, I can suggest the following tutorials for a model development from scratch:

tutorials/multiphase/overInterDyMFoam/floatingBody for overInterDyMFoam settings, and
tutorials/incompressible/pimpleDyMFoam/oscillatingInletACMI2D for prescribed oscillatingLinearMotion settings (Might be other tutorials regarding this).

Oscillating mesh movement

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