FluidDynamics App not using constraints

[adityaghantasala]

The fluid dynamics application is not using constraint builder and solver for applying period boundary conditions. This will break the examples and apply_periodic_comdition.py cannot be used.

[RiccardoRossi]

I think this should be fixed by #4149 since it adds that capability to the default Builder And Solver

[adityaghantasala]

yes .. then still the python solver should be changed to remove use of a different b & s when periodic bcs are used !

[philbucher]

@jcotela told me he will anyway update the python-solvers in the near future
@jcotela guess you can add this to the list of TODOs :)

[jcotela]

@philbucher is right, the python solvers will be updated at the beginning of the next release cycle. Mentioning #871 so that I have a reference to this issue there.

[jcotela]

(sorry, closed by mistake)

[loumalouomega]

Is this solved?

[rubenzorrilla]

I think this was solved long ago (see for instance the fluid RVE).