The model is a block of solid being pressed on a block of water. The model is a coupling between Transient/Fluent solvers. The solution is trivial - in the block of water there should be pressure as the pressure of the pressed solid block.
The execution fails on negative volume error no matter how small is the time step.
The project is attached in ansys 16.2.
It is requested a walk through document that explains what you changed in the model.
Please dont use file test03.zip but instead test03a.zip
the file test04.zip is in ansys 14 version
its seems that the definition of walls surrounding the cube of water cause the trouble. then the problem is how to define them differently.