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General > Mesh > Display...

 
You should have all the surfaces shown here.  You should check whether each surfaces correspond to the right geometry by unchecking unrelated surfaces and click Display to view the surface of interest in the Graphics window.
Next, we will specify that the problem we are solving is axisymmetric.
General > Solver > 2D Space > Axisymmetric

 
Now let's move on to setting up our model. We will first turn on the energy equation.
Models > Energy - Off > Edit...
Turn on the Energy Equation and click OK.
 
Next, we will setup the Viscous model.

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