[FFD]

Hello,
My geometry is a kind of a helix. The flow flows through the helix.
So I made a mesh in Ansys Meshing and I have very high skewness values.

I have about 10.000.000 cells
My min. Skewness is: 1,71641165032099E-05
My max. Skewness is: 0,999397641071006
No matter what I try. My skewness is always round about 0.999.

I selected as preset: CFD, relevance is 100 and everything is set to pretty fine.
Many said that the Inflation might cause problems. I tried it turned on program controlled and off. Both had similar results.

So I looked up at cfd-online already and tried some of the tips.
I provide some pictures with a very high skewness cells.
To the names of the pictures: W_Prism is with turned on Inflation and WO_Prism is with turned off Inflation.
Any suggestions on how to fix these cells?
Thank you in advise.
FFD