[Meta] Free surface improvements

[gassmoeller]

This is a list of issues about improving the mesh deformation implementation:

• [ ] initial topography and mesh deformation:
  • [ ] #3402
  • [ ] #3403
  • [x] #3399
• [ ] particles and mesh deformation:
  • [ ] #3016
• [ ] Improving the free surface solver:
  • [ ] #2969
  • [ ] #3110
• [ ] Use a better surface advection scheme:
  • [ ] #3717
• [ ] Advect free surface inside nonlinear solver: #3718.
• [ ] Using the same finite element for mesh deformation and surface velocity: #3719
• [ ] Create a topography visualization postprocessor #1270

If you are interested in working on any of these issues please comment in the respective issue threads. If I have forgotten an issue please comment in this issue. I will update this meta issue to keep track of what has or has not been tackled.

[anne-glerum]

The topography post processor has an option to write the surface topography to file for x,y surface coordinates. Would that be sufficient?