Ansys is a very powerful tool to learn to simulate real world problems in a virtual world. It saves a lot of time being spent in experimentation and physical exposure giving you the same results that you would achieve in a real world.
Hot and Cold water mixing Simulation in Ansys
This is a very good simulation example of Ansys Fluent to start up with.
The steps to be followed are:
1) Importing the Geometry : Click Here
2) Generating Mesh and Creating Name Selection
3) Defining Material of Fluid and Boundary Conditions
4) Setting up the Solver
5) Viewing the Results.
Please watch above video for detailed steps,