We'll need to define the scenario and the budget you have in mind as they are pretty big prerequisites in deciding if its going to be possible to deliver what you want from both a technical and financial point of view.
Everything that needs to be affected by the simulation will be calculated and simulated in a test environment to produce a quick mock up where the emphasis is on tweaking the simulation before the final version goes into production.
Once the settings have been finalised and the client is happy, the frames are rendered out and compiled to form a video of the on screen action.
How objects (geometric shapes) break and collide with one another.
How water reacts to its environment.
Velocity and Mass of objects.
Apply almost any physical force and attributes which replicate or bend reality.
There are always limitations, but you're advised to think big to begin with and once your idea is on the table, you will receive a free, no obligation, tailor made assessment of what can be done to ensure your needs are met, while delivering on time and on budget.
Simulate realistic flooding scenarios on real world towns, cities and objects (any geometric shape).
Simulate scene of crime accidents involving cars or moving objects.
Configure, destroy, reconfigure and destroy to achieve maximum protection of safety areas against numerous forces and elements.
Create realistic collisions which float, fall, rotate, break, and collide in ways that you would expect them to and have them influence each other to achieve maximum visual impact.
Create your own laws of physics.