rotating gravity
 

Hello World.

Is it possible to read the gravity-File g time dependent vom a data-File?
(similar to timeVaryingUniformFixedValue)

This could be an easy way to simulate a rotation.

Best Regards.

should not pose a problem
 

This should not pose a problem. One thing though is that you will have to modify a solver and add a gravity file to your time folders. This can then be read like any other field from the the runtime.

I would suggest that you take a look on how to implement new fields to an existing solver.