Reply To: Fluid Flow Through a Stepped Tee Pipe

[Rob]

Given the change in surface area between the inlet and outlet I'd question the benefit of trying this in 2d. Given the apparent symmetry I'd split the model.
The steps you should take now are fairly similar to an experiment, once you've clicked on Help and done some tutorials:
On paper (A3 is good for this or A4 if your hand writing hasn't yet degenerated!)
Define the problem
Sketch out the geometry and add ALL boundary conditions, material properties etc. Include everything you don't know but want to.
Sketch where you think the flow is going to go.

Post the image of your sheet of paper.

Open the geometry tool (you have CAD so you can use that) and create the fluid region.
Mesh the model
Set up the solver & run the case
Post process