Hi, I have few questions for very low head (0.7 m) propeller turbines.
My friend has a software PropCad that could generate ducted boat propellers. Should hydro propeller be made with characteristics for boat propellers by use the mirror hydro foils?
What characteristics should be used for low head propeller, blade number, hub diameter (%/D), expanded BAR, blade thickness distribution, nominal pitch or TSR...?
Available flow is more then 200 l/s. Used flow will be lower, reduced by PVC penstock and runner both in diameter 300 mm.
Thanks for answers.
Marko