Learning Forum

[WesRamm]

Hello, I have been tasked with doing some numerical simulation on a pre-existing radial turbine, for which I have the solid models.

I have meshed the solid and fluid parts and can import them into CFX Pre.

I am looking for a tutorial that shows how to do a radial machinery analysis with CFX for geometries that do NOT start with bladegen and turbogrid, and it seems that all of the shipping examples use this workflow. Because I have the full 3D geometry, it seems that I cannot use 'turbomachinery' mode, as this seems to use a single-passage geometry definition from turbogrid.

Is anyone aware of a CFX tutorial that shows how to set up a simulation for a radial turbine, including defining boundaries and interfaces when using full 3D geometry rather than the single-passage geometry that turbogrid generates?

Perhaps it would be better to use Fluent?

Thanks!

[rfblumen]

If working with the full wheel, there will be no periodic interfaces. The only boundary conditions will be for the inlet, outlet and walls. It you wish to post-process in Turbo mode in CFD-Post, you'll need to generate a region of boundary condition for the hub, shroud and blades.
The CFX tutorials related to other turbomachinery cases should be useful in setting up this problem. The geometry/meshing portion using turbo tools (e.g. BladeGen and TurboGrid) doesn't affect the setup in CFX-Pre other than Name Selections generated by TurboGrid - similar Name Selections can be created in Ansys Meshing.