1. Added resistance in regular waves

1-1 Calculation method

Added resistance in regular waves,, is calculated as follows:

where

R_wm : Added resistance due to ship motion

R_wr : Added resistance due to reflection waves.

The added resistance due to ship motion, R_wm, is calculated on the basis of

MARUO’s theorem.

The added resistance due to reflection waves, R_wr, is calculated as follows:

where

r : fluid density

g : gravitational acceleration

:amplitude of regular waves

B : ship breadth

B_f : bluntness coefficient [Detail]

: effect of draft and frequency [Detail]

: effect of advance speed. [Detail]

[ NMRI HOME ]