calcOpenWaterEff.Rd
Calculate the open water efficiency (openWaterEff
)
(dimensionless) using the Kristensen method with Harvald regressions.
calcOpenWaterEff( Rtot, thrustFactor, nProp, wakeFraction, propDiam, shipSpeed, seawaterDensity = 1.025 )
Rtot | Total ship resistance (vector of numericals, kN) (see
|
---|---|
thrustFactor | Thrust deduction factor (vector of numericals,
dimensionless) (see |
nProp | Number of propellers (vector of numericals, see
|
wakeFraction | Wake fraction coefficient (vector of numericals,
dimensionless) (see |
propDiam | Propeller diameter (vector of numericals, m) (see
|
shipSpeed | Ship actual speed (vector of numericals, m/s) (see
|
seawaterDensity | Sea water density. Default = 1.025 (g/cm^3). Can supply either a vector of numericals, a single number, or rely on the default |
openWaterEff
(vector of numericals, dimensionless)
Kristensen, H. O. "Ship-Desmo-Tool." https://gitlab.gbar.dtu.dk/oceanwave3d/Ship-Desmo
calcOpenWaterEff(398.487,0.1894947,1,0.3199536,6.7,0,seawaterDensity=1.025)#> [1] 0