francis_beta | R Documentation |
Relative flow angle (rad) at turbine discharge; used in strike equations
francis_beta(Q, D, D1, D2, rpm, opt, xi)
Q |
Turbine discharge (cfs) |
D |
Nominal diameter (ft) of runner |
D1 |
Diameter (ft) at the intake of the runner |
D2 |
Diameter (ft) at the outlet of the runner |
rpm |
Runner revolutions per minute |
opt |
Ratio of turbine discharge at best efficiency to hydraulic capacity |
xi |
Ratio between Q with no exit swirl and Qopt |
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