propeller_alpha: Propeller alpha
In EnvironmentalScienceAssociates/tbsa: Turbine Blade Strike Analysis
propeller_alpha R Documentation
Propeller alpha
Description
Angle (rad) to tangential of absolute flow upstream of runner
Usage
propeller_alpha(Q, H, D, rpm, eta, opt, radius_ratio)
Arguments
Q
Turbine discharge (cfs)
H
Net head on the turbine (ft)
D
Nominal diameter (ft) of runner
rpm
Runner revolutions per minute
eta
Turbine efficiency
opt
Ratio of turbine discharge at best efficiency to hydraulic capacity
radius_ratio
r/R where R = 0.5 * D; passage near hub (0.5), mid-blade (0.75), blade tip (1)
EnvironmentalScienceAssociates/tbsa documentation built on Feb. 3, 2023, 6:46 a.m.
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| propeller_alpha | R Documentation |
Propeller alpha
Description
Angle (rad) to tangential of absolute flow upstream of runner
Usage
propeller_alpha(Q, H, D, rpm, eta, opt, radius_ratio)
Arguments
Q |
Turbine discharge (cfs) |
H |
Net head on the turbine (ft) |
D |
Nominal diameter (ft) of runner |
rpm |
Runner revolutions per minute |
eta |
Turbine efficiency |
opt |
Ratio of turbine discharge at best efficiency to hydraulic capacity |
radius_ratio |
r/R where R = 0.5 * D; passage near hub (0.5), mid-blade (0.75), blade tip (1) |
R Package Documentation
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