Hi,

I want to solve a transient multi-physics problem on a domain including 2 rectangles:

- The first equation describes diffusion of some chemicals that should be solve
**on both domains**. - The second equation describes deformation of the internal red rectangle that should be solved
**only for the red rectangle**(The displacement filed only exists on red domain)

The thing is the shape of the red domain changes in time that should be considered in calculation of the chemicals:

It means that the domain and mesh should be updated in each time step. I have some questions:

- Is it even possible to solve such a problem in FEniCS?
- I was wondering if MixedDimensional branch could solve this problem but if this is true: Is re-meshing the domains automatically done in each time-step as the red domain is deformed in time?

I appreciate any hint or advice (Or any example) on this problem.