solidFoam does not allow changing time steps

Functionality to add/problem to solve

solidFoam does not support e.g. setTimeStep FO.

Proposal

Define a 'Courant' number and include time-step changing. The problem is that time.setDeltaT(..) is not called so there is no call to functionObjects_.adjustTimeStep().

What does success look like, and how can we measure that?

Run with setTimeStep FO