Calculates the water plane area coefficient (Cwp) (dimensionless) using one of two methods (Kristensen or Schneekluth).

calcCwp(Cbw, CwpEquationType)

Arguments

Cbw

Waterline block coefficient (vector of numericals, dimensionless) (see calcCbw)

CwpEquationType

Indicates equation type:

  • "schneekluth"

This argument is not vectorized, as it takes only a single string

Value

Cwp (vector of numericals, dimensionless)

Details

Kristensen: $$Cwp = 0.55+0.45Cbw$$

Schneekluth: $$Cwp = \frac{1+2Cbw}{3}$$

References

Kristensen, H. O. and Lutzen, M. 2012. "Prediction of Resistance and Propulsion Power of Ships. Clean Shipping Currents, 1 (6).

Schneekluth, H. and Bertram, V. 1998. "Ship Design for Efficiency and Economy." 2nd ed. Oxford, Boston: Butterworth-Heinemann.

See also

Examples

calcCwp(c(0.81,0.65),"kristensen")
#> [1] 0.9145 0.8425