CFD engineer who teach me how to analyze convective heat transfer inside viscometer

I would like to analyze how heat transfers inside concentric cylinder viscometer.

Given that external cylinder temperature is
a) 40 ℃
b) 60 ℃
while internal cylinder is
a) 20 ℃
b) 40 ℃

, I would like to simulate how convective heat transfer occurs by time.

in 1 min later, 2 mins later, 3 mins...
how hot will the internal rotor will be?
I want to make graph for that.

I am totally new to CFD and want to find someone who teach me how to deal with CFD.
I have downloaded Ansys, Autodesk CFD and Paraview.

If you are not familiar with these and want to use other software, please let me know.
In that case, I would like you to run simulation instead of me.

I have already made 3D model for concentric cylinder viscometer. I would like to start from asking you how to create mesh for simulation.

I am assuming you and I talk via zoom or Google Meet this weekend.

I will pay for the time you have spared on teaching me or running simulation instead of me.

If you have any question, feel free to ask me.