calcHMTotalRes.Rd
Calculate total ship resistance (Rtot
) (kN) using the
Holtrop & Mennen method.
calcHMTotalRes( Rapp, Rw, Rb, Rtr, seawaterDensity, wettedSA, shipSpeed, Cf, formFactor, Ca, serviceMargin )
Rapp | Appendage resistance (vector of numericals, kN) (see
|
---|---|
Rw | Wave waking (similar to residual) resistance (vector of numericals, kN)
(see |
Rb | Bulbous bow resistance (vector of numericals, kN) (see
|
Rtr | Immersed transom resistance (vector of numericals, kN) (see
|
seawaterDensity | Sea water density. Default = 1.025 (g/cm^2). Can supply either a vector of numericals, a single number, or rely on the default |
wettedSA | Wetted hull surface area (vector of numericals, m^2) (see
|
shipSpeed | Ship actual speed (vector of numericals, m/s) (see
|
Cf | Frictional resistance coefficient (vector of numericals, dimensionless)
(see |
formFactor | Form factor (1+k) (vector of numericals, dimensionless)
(see |
Ca | Incremental hull (roughness) resistance coefficient (vector of
numericals, dimensionless) (see |
serviceMargin | A service margin to account for weather and sea effects:
. Can supply either a vector of numericals, a single number, or rely on the default |
Rtot
(vector of numericals, kN)
Note that service margin is included here as a resistance term.
Holtrop, J. and Mennen, G. G. J. 1982. "An approximate power prediction method." International Shipbuilding Progress 29.
Other Holtrop-Mennen Calculations:
calcHMAppendageRes()
,
calcHMBulbousBowRes()
,
calcHMCa()
,
calcHMFormFactor()
,
calcHMImmersedTransomRes()
,
calcHMPwr()
,
calcHMThrustFactor()
,
calcHMWakeFraction()
,
calcHMWaveMakingRes()
,
calcHMWettedSA()
Other Resistance Calculations:
calcCf()
,
calcHMAppendageRes()
,
calcHMBulbousBowRes()
,
calcHMCa()
,
calcHMImmersedTransomRes()
,
calcHMWaveMakingRes()
,
calcKristCaa()
,
calcKristCa()
,
calcKristCr()
,
calcKristTotalRes()
calcHMTotalRes(Rapp=0.24, Rw=2.6, Rb=c(4.538188e-07,3.579217e-06,1.180116e-05,2.709520e-05,5.085940e-05), Rtr=c(0.58,2.2,4.8,8.1,12.1), seawaterDensity=1.025, wettedSA=10746.282, shipSpeed=seq(1,5,1), Cf=c(0.0019,0.0017,0.0016,0.0016,0.0015), formFactor=1.275601, Ca=0.0003356088, serviceMargin=15)#> [1] 21.40896 69.23655 144.25602 253.41659 373.28878