Yamazaki 



From Eqs. (39) the components of force and moment caused by water pressure 

 acting on the hull surface are .^... , 



tfO 



^2 r^' ^ r^^''^' I 



xo = - T J ^^1 ^ "^K°(^i.^i)k + 



B0* 



L 3^ 



H^i' 



(SH)/ 



iA 2 J7d(^l) 



KO - _ ^ 



''HFyO ~ "4" 



•^HFzO ~ 4 





dT7i . 



(SH) 



^^A 2 J7d(^i) 





3z* 



d^i , 



(SH) 



2 /a 2 7,,(Ci) 



+ (-l)^Z*(^l,^l) ^— dT^^, 



ko 



'^HMyO 



3 0*0 



3z* 



(SH) 



-^U K=l •^^(5, ) 



(-ir"^^o(^i-^i) -0 + 



dT7i , 



r^A 2 Vddi) 



VO - _ ^ 



^F '<=1 -^b(^l) 



dT?i 



,30*0 



(SH) 



(65) 



Further, since the flow streaming into the rudder is parallel to the xy plane, we 

 have in Eq. (44) 



K^ - KO = 

 Hence, from Eqs. (44), (45), and (48) we get 



(66) 



34 



