I just got a semesterproject assigned to setup a analysis of a closed ringwing in Fluent and are completely new to Ansys Workbench. I got an idea working woth the cornell modules before they got "locked" a few days ago.
Anyways, the original idea was to use my predecessors' Matlab script which creates a directly a geometry file of the ringwing for Ansys. First it creates an airfoil based on some parameters, alignes up to 6 profiles equaly spaced in a circular pattern and connects the profiles with splines. The airfoils are "spline-based" too.
I used then the enclosure function to create the windtunnel. Through named selections, I defined the airfoil as itself, the back end as outlet and the rest of the enclosure as inlet. But as soon as I start the Meshing in Fluent, it always gives me an error message about a problematic geometry and aborts the process.
Another approach I tried is to create, based on a coordinate .txt file, an airfoil in the xy-plane which is offset in the y-direction. Then create a line, then a surface and then revolve the whole thing around the x-axis to create the wing. After that, creating the enclosure. I tried the different "automatic" meshing options. The Fluent ones either come up with an error message concerning problematic geometry or that the meshing ran out of memory. If I mesh it with CFX, it looks ok except for the trailing edge which is unusable (looks like pieces have been broken off it).
Sketching a rectangular or elliptic profile and doing the same procedure as the one with reading the file, the mesh generator seems to work fine (though it looked that the trailing edge of the ellipse wasn't a 100% smooth either).
I thought about splitting the enclosure into two parts, just as in the airfoil tutorial of cornell, to create the mesh. Though I can't say if that is going to help at all in 3d.
No I would like if anybody out there might have a suggestion or an idea for a different approach or any thoughts how to fix the problem with the meshing.
Thanks a lot in advance for your advice.
Best Regards,