hub and shroud curves steep variations
 

Hi everyone

I have a concentric radial turbine of six stage .

I imported every single stage in igs and I did the mesh. now i want to make the mesh for the six stages because of the steep variation between the hub and shroud curves I was unable to assemble the six stage in Autogrid .

i add a picture to be more clear in my question.

any help is welcome Thank's in advance