[seumas]

Hi,

I am working on a surface piercing propeller for my fourth year naval architecture project. I have recently finished modelling it and would like to carry out a CFD analysis. I've tried Autodesk Inventor, but ran into issues due to the limitations in fluid mixing. Solidworks was another options but the University doesn't have the full program.

I designed the prop in Rhino, so to get it into ANSYS I exported it as a .sat file. For the boundaries, I created surfaces in rhino, which consist of two circles and a cone.
Here is a photo of the prop:


Here are the boundary surfaces:


The velocity inlet being the RHS and pressure outlet LHS.
I managed to get the prop into the setup window after mesh, but without the boundaries?


The velocity of the water and air inlet will be fixed at 50 knots, and running the prop though a calculator it will be turning at 3480rpm. To keep it as simple as possible I'm just after a calculation with the prop 50% submerged.

I don't have much experience with Fluent at all - we did a very simple 2D example in lectures. So really any tips on how to create the boundary surfaces would be appreciated.

Thanks,
Seumas