How to make fluid simulation by Autodesk Inventor 2016 ?
to show the fluid motion inside tanks & pipes
Here is a link/video on how to use the autodesk flow simulation.
It is unfortunately another completely different software package you will need to purchase and download.
There are other ways to generically create a fluid simulation. I have seen people use inventor models inside of PowerPoint and also 3Dmax. I believe that Solid works has a fluids package in their software. possibly you could find someone who would run your model in Solid Works. I have not had anyone do this for me so I am only speculating.