Oil sucks, wind blows.
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The first step was to beadblast the mill scale off of the magnet rotors as in the picture above. Here is the Magnet & cooling fin alignment jig setting on the first rotor.Here is the first cooling fin tacked on.Here I have all of the fins tacked on & ready to weld.Here is a picture af all of the cooling fins welded on. Nice thing about heliarc is the small heat affected zone very little warpage. Actually it improved the plate some it was warped a little to start with so I put the fins on the opposite side and it came out fairly flat.I am having some problems getting the next picture I uploaded to display so I am going to re upload it and pick up from here with part 3.
It's a bit tricky with most designs, the hub prevents access from the back and the prop masks the front. If you build backwards from the conventional with the front disc on the hub flange ( where it additionally gives the prop maximum support) you can space the rear disc backwards and it can have some decent air ducts. You seem to have more overhang from the tower so you would have room to adopt this method.
Flux
Pretty slick idea on the hub placement for air flow.
I am not well versed in fluid dynamics [airflow] but could you put the vanes on one half of one rotor set to scoop air in and other half to fling it out?
If that makes sense?
Maybe then you could get airflow without the redesign of hub mountings. My mind tells me it would flow across the face in one side and out another?
Just thinking out loud.
Tom
My original idea was exactly what you are thinking. I was going to orient the curve of the fins on one plate opposite of the other. However what I hadn't mentioned is that I am putting a weather shroud around the Rotors & stator with an opening in front and in the back for air flow around the stator All the fins have to do is create a higher pressure area inside the shroud to draw air in the smaller opening & push it out the bigger opening. That is my hope anyway!
I just made a post with a drawing that shows the setup better than I can explain it.It may work or it may not but I felt it was worth a try.
Brian
Good to know.