Hi @simscale7yahoo!
Really looked like a propeller though
Now it makes sense! Do you mind sharing the paper here again? Would be great also that others can have a look at it and I want to see what the results there are saying.
For the boundary conditions (BCs) you could use:
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Freestream BC: Custom BC with Inlet-Outlet for velocity, fixed value for pressure (0 Pa) and adapt k&omega values
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Wall BC with slip on top and bottom (bottom can also be no-slip if you want to capture boundary layer effects - consider using slip when viscous effects are negligible or the mesh size is much bigger than the boundary layer)
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For the wall you could indeed use the rotating wall velocity adapting the values for the rotation axis etc.
Feel free to ask if there are any questions.
Best,
Jousef