fluid flow (cfx) for francis turbine
 

can someone guide me as to what should be the interface between runner and draft tube in steady state and transient models?
and what initial conditions should i use for transient analysis?
i am modeling the spiral casing , guide vanes runner and draft tube. please someone post initial conditions to all parts.

cfx vs fluent
 

what is the input power difference between fluent and cfx for a same francis turbine