Hello all
I recently got a project to build a 3d model of a francis turbine.
I have an old hand made drawing with all the details and dimensions exept for the blade surface.
we made a 3d laser scan of the blade , but because of the shape we can only get 1/3 of the blade the rest is too blocked for the laser to see.
can any one help with the phisics behind the turbine blade shape so i can model it
I attache what we got untill now, this blades are not correct