Wave Excitationless Ships Forms 



I. Or 



r^« 



lU. 



0.5 



.T-2.0 a 

 -T-2.5 a 



^*"-^t:r:--— T:i;g 



0.1 



0.2 



0.3 0.4 



0.5 



0J& 0.7 0.8 -^a 

 



1.0 



1^0.5 



Fig. 22 - Heaving force per unit length of a 

 elliptic-type prism in longitudinal waves 



T=2.5a 



CA.l£ULArEp 



0.1 



02. 0.3 



0.4 



05 



OJB 0.7 



0.8 fa 



6 4 3 



1.5 



X(m) 



Fig. 23 - Comparison of heaving force in longitudinal 

 waves with that in transverse waves 



will give a velocity potential which satisfies the free surface condition and should 

 not associate surface waves. Therefore, f(t) is a velocity potential around a 

 body which is free from surface wave as it heaves in a free surface. 



If a singular point at depth h is taken to be m(t), viz, 



't + ih 



m(t) = log ^j_-j-^ 

 401 



(11) 



